Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
791
FNUS55 KRIW 311937
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
137 PM MDT Fri Jul 31 2026
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Saturday is expected to be warm and dry, with no precipitation
across the area. Gusty southwest winds in the afternoon, generally
15 to 30 mph in the highest elevations. High temperatures trend
about 5 degrees warmer and minimum humidity trends 5 to 10 percent
drier. Conditions trend warmer and drier for Sunday.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR ZONES 275, 276, 282, 283, AND 285...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING FOR ZONE 289...
Saturday is hot and dry, with no precipitation expected across the
area. Gusty west-southwest winds 15 to 25 mph in the afternoon
around zones 276, 286, and 287. High temperatures trend about 5
degrees warmer and minimum humidity trends 5 to 10 percent drier.
Conditions trend warmer and drier for Sunday, when elevated to
critical fire weather conditions will be in place.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR ZONE 285...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING FOR ZONES 277, 278, 279, AND 289...
Saturday is hot and dry, with no precipitation expected across the
area. Winds prevail from the west to southwest, with afternoon gusts
15 to 20 mph possible. High temperatures trend about 5 degrees
warmer and minimum humidity trends 5 to 10 percent drier. Conditions
trend warmer and drier for Sunday, when elevated to critical fire
weather conditions will be in place.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-012145-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....88-93.
24 hr trend......7 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......14 percent drier.
20-foot winds.......North winds around 10 mph with higher gusts.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......10800-12800 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Patchy smoke.
Chance of thunder...0 percent.
Min temperature.....57-62.
24 hr trend......3 degrees warmer.
Max humidity........46-52 percent.
24 hr trend......17 percent drier.
Humidity recovery...Moderate.
20-foot winds.......East winds 10 to 15 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....East around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 2400, then south.
Mixing Height.......4600-6600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....92-97.
24 hr trend......5 degrees warmer.
Min humidity........6-12 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 11000-13000
ft agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....63-68.
24 hr trend......6 degrees warmer.
Max humidity........23-29 percent.
24 hr trend......25 percent drier.
Humidity recovery...Poor.
20-foot winds.......Southwest winds around 10 mph until 2100, then
south. Gusts up to 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......5800-7800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....96-101.
24 hr trend......4 degrees warmer.
Min humidity........4-10 percent.
24 hr trend......3 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 20
mph until 1200, then 30 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 11400-13400
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. West winds
around 10 mph.
.MONDAY...Not as warm. Clear. Lows around 50. Highs in the lower
80s. Northeast winds around 20 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. East winds around 15 mph.
.WEDNESDAY...Clear. Lows in the upper 50s. Highs around 90. Winds
generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 60s.
Highs in the mid 90s.
$$
WYZ283-012145-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......3 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......5 percent drier.
20-foot winds.......North winds around 10 mph with higher gusts.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......11600-13200 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers early in the
evening. Patchy smoke through the night. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....57-62.
24 hr trend......3 degrees warmer.
Max humidity........40-46 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
20-foot winds.......North winds around 10 mph until 2400, then east
until 0300, then downslope/downvalley 4-7 mph.
Gusts up to 20 mph.
Ridge top winds.....North around 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then south.
Mixing Height.......4800-6800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....92-97.
24 hr trend......5 degrees warmer.
Min humidity........9-15 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then
southwest around 10 mph with higher gusts.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....59-64.
24 hr trend......2 degrees warmer.
Max humidity........25-31 percent.
24 hr trend......18 percent drier.
Humidity recovery...Poor.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......5800-7800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....94-99.
24 hr trend......3 degrees warmer.
Min humidity........6-12 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200. Winds west
around 20 mph with gusts to around 30 mph after
1500.
Ridge top winds.....Southwest around 10 mph until 1200, then around
20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then around
20 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 11800-13800
ft agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. West winds
around 15 mph.
.MONDAY THROUGH TUESDAY...Clear. Lows 50 to 55. Highs 81 to 86.
Northeast winds 10 to 15 mph.
.WEDNESDAY...Clear. Lows in the upper 50s. Highs around 90. Winds
generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 60s. Highs in the mid
90s.
.FRIDAY...Sunny. Highs in the mid 90s.
$$
WYZ285-012145-
South Bighorn Mountains-
137 PM MDT Fri Jul 31 2026
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....81-86.
24 hr trend......6 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......10 percent drier.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......10200-12200 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Mostly clear. Patchy smoke.
Chance of thunder...0 percent.
Min temperature.....58-63.
24 hr trend......4 degrees warmer.
Max humidity........36-42 percent.
24 hr trend......21 percent drier.
Humidity recovery...Poor.
20-foot winds.......Northeast winds around 10 mph until 2100.
Southwest after 0300. Gusts up to 20 mph.
Ridge top winds.....Northeast around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 2400, then south.
Mixing Height.......4400-6400 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......5 degrees warmer.
Min humidity........8-14 percent.
24 hr trend......6 percent drier.
20-foot winds.......Southwest winds around 10 mph with higher
gusts.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......3600-5600 ft agl until 1200, then 9800-11800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....63-68.
24 hr trend......5 degrees warmer.
Max humidity........17-23 percent.
24 hr trend......19 percent drier.
Humidity recovery...Poor.
20-foot winds.......Southwest winds around 10 mph and gusty.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......5200-7200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....89-94.
24 hr trend......2 degrees warmer.
Min humidity........7-13 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 20
mph until 1200, then 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 15 mph.
.MONDAY...Not as warm. Clear. Lows in the upper 40s. Highs in the
mid 70s. North winds around 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. East winds around 10 mph.
.WEDNESDAY...Clear. Lows in the upper 50s. Highs in the lower
80s. Northwest winds around 10 mph.
.THURSDAY...Clear. Lows in the lower 60s. Highs in the upper 80s.
.FRIDAY...Mostly sunny. Highs in the upper 80s.
$$
WYZ281-012145-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Areas of smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....84-89.
24 hr trend......10 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......15 percent drier.
20-foot winds.......Southeast winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.5 percent.
Transport winds.....Southeast around 15 mph.
Mixing Height.......7200-8800 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Patchy smoke.
Chance of thunder...0 percent.
Min temperature.....59-64.
24 hr trend......3 degrees warmer.
Max humidity........44-50 percent.
24 hr trend......31 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southeast winds around 10 mph with gusts to
around 25 mph until 2100, then south with gusts
to around 25 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph.
Mixing Height.......3200-5200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....92-97.
24 hr trend......7 degrees warmer.
Min humidity........8-14 percent.
24 hr trend......9 percent drier.
20-foot winds.......South winds around 10 mph with higher gusts.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 10800-12800
ft agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....63-68.
24 hr trend......5 degrees warmer.
Max humidity........24-30 percent.
24 hr trend......23 percent drier.
Humidity recovery...Poor.
20-foot winds.......South winds 10 to 15 mph with gusts to around
30 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......6000-8000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....90-95.
24 hr trend......2 degrees cooler.
Min humidity........9-15 percent.
24 hr trend......1 percent wetter.
20-foot winds.......West winds around 15 mph with gusts to around
35 mph until 0900, then northeast with gusts to
around 35 mph until 1500, then east around 10
mph with gusts to around 25 mph.
Ridge top winds.....Northwest around 20 mph until 1200, then
northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 20 mph until 1200, then
southwest.
Mixing Height.......1000-3000 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
around 15 mph.
.MONDAY...Not as warm. Clear. Lows in the lower 50s. Highs in the
lower 80s. North winds around 20 mph.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
East winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows around 60. Highs in the upper
80s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 60s.
Highs in the mid 90s.
$$
WYZ282-012145-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....85-90.
24 hr trend......6 degrees warmer.
Min humidity........11-17 percent.
24 hr trend......6 percent drier.
20-foot winds.......North winds around 10 mph and gusty.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......11600-13400 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Mostly clear. Patchy smoke.
Chance of thunder...0 percent.
Min temperature.....58-63.
24 hr trend......3 degrees warmer.
Max humidity........35-41 percent.
24 hr trend......10 percent drier.
Humidity recovery...Poor.
20-foot winds.......North winds around 10 mph until 2100, then
south. Gusts up to 15 mph.
Ridge top winds.....East around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then south.
Mixing Height.......5000-7000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....90-95.
24 hr trend......5 degrees warmer.
Min humidity........5-11 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......2400-4400 ft agl until 1200, then 10600-12600
ft agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....63-68.
24 hr trend......3 degrees warmer.
Max humidity........17-23 percent.
24 hr trend......15 percent drier.
Humidity recovery...Poor.
20-foot winds.......South winds around 10 mph and gusty.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......5800-7800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....92-97.
24 hr trend......2 degrees warmer.
Min humidity........5-11 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....Southwest around 10 mph until 1200, then around
20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then southwest
around 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds around 15 mph.
.MONDAY THROUGH TUESDAY...Clear. Lows 51 to 56. Highs in the
lower 80s. North winds 10 to 15 mph.
.WEDNESDAY...Clear. Lows around 60. Highs in the lower 90s. Winds
generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Clear. Lows in the lower 60s. Highs in
the mid 90s.
$$
WYZ275-012145-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......4 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......6 percent drier.
20-foot winds.......North winds around 10 mph and gusty.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......11400-12800 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly clear. Patchy smoke early in the
evening, then areas of smoke early in the
evening. Patchy smoke after midnight.
Chance of thunder...0 percent.
Min temperature.....58-63.
24 hr trend......3 degrees warmer.
Max humidity........36-42 percent.
24 hr trend......13 percent drier.
Humidity recovery...Poor.
20-foot winds.......North winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
south around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North around 10 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 2400, then
southeast.
Mixing Height.......5000-7000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....89-94.
24 hr trend......5 degrees warmer.
Min humidity........8-14 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest.
Mixing Height.......1600-3600 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....62-67.
24 hr trend......2 degrees warmer.
Max humidity........20-26 percent.
24 hr trend......15 percent drier.
Humidity recovery...Poor.
20-foot winds.......South winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......6200-8200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....88-93.
24 hr trend......1 degree cooler.
Min humidity........7-13 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northwest around 10 mph with higher gusts until
1200, then upslope/upvalley 5-9 mph until 1500,
then west around 10 mph with gusts to around 30
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 1200, then
southwest.
Mixing Height.......1200-3200 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 15 mph.
.MONDAY...Not as warm. Clear. Lows around 50. Highs around 80.
North winds around 20 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. Winds generally less than 10 mph.
.WEDNESDAY...Clear. Lows in the upper 50s. Highs in the upper
80s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 60s. Highs in the mid
90s.
.FRIDAY...Sunny. Highs in the mid 90s.
$$
WYZ276-012145-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....86-91.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......6 percent drier.
20-foot winds.......Northeast winds around 10 mph and gusty.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......10000-11200 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly clear. Isolated showers and
thunderstorms early in the evening. Patchy
smoke through the night. Some thunderstorms may
produce gusty winds early in the evening.
Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....61-66.
24 hr trend......4 degrees warmer.
Max humidity........34-40 percent.
24 hr trend......11 percent drier.
Humidity recovery...Poor.
20-foot winds.......North winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
southwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest around 15 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2400, then
southwest.
Mixing Height.......4200-6200 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....92-97.
24 hr trend......7 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southwest winds around 10 mph and gusty until
0900. Around 15 mph with gusts to around 25 mph
after 1500.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 11200-13200
ft agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....64-69.
24 hr trend......3 degrees warmer.
Max humidity........23-29 percent.
24 hr trend......15 percent drier.
Humidity recovery...Poor.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......6000-8000 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....88-93.
24 hr trend......3 degrees cooler.
Min humidity........12-18 percent.
24 hr trend......Unchanged.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 35 mph until 1500, then west around 20
mph with gusts to around 35 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 20 mph.
.MONDAY...Not as warm. Clear. Lows in the upper 40s. Highs in the
mid 70s. North winds around 20 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. North winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
mid 80s. North winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 60s. Highs around 90.
.FRIDAY...Sunny. Highs around 90.
$$
WYZ287-012145-
Owl Creek Mountains-
137 PM MDT Fri Jul 31 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....80-85.
24 hr trend......5 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......7 percent drier.
20-foot winds.......Northeast winds around 10 mph and gusty.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......9600-11600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Patchy smoke.
Chance of thunder...0 percent.
Min temperature.....58-63.
24 hr trend......4 degrees warmer.
Max humidity........30-36 percent.
24 hr trend......13 percent drier.
Humidity recovery...Poor.
20-foot winds.......Northwest winds around 10 mph until 2100, then
south. Gusts up to 20 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......7 degrees warmer.
Min humidity........8-14 percent.
24 hr trend......6 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10200-12200
ft agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....62-67.
24 hr trend......4 degrees warmer.
Max humidity........15-21 percent.
24 hr trend......15 percent drier.
Humidity recovery...Poor.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......5600-7600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....88-93.
24 hr trend......1 degree warmer.
Min humidity........5-11 percent.
24 hr trend......2 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph until 1500, then west around 20
mph with gusts to around 35 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then around
25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
25 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 11200-13200
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 20 mph.
.MONDAY THROUGH TUESDAY...Clear. Lows 48 to 53. Highs in the mid
70s. East winds 10 to 20 mph.
.WEDNESDAY...Clear. Lows around 60. Highs in the mid 80s.
Northeast winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 60s.
Highs in the upper 80s.
$$
WYZ286-012145-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
137 PM MDT Fri Jul 31 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....78-83.
24 hr trend......3 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......3 percent drier.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......9600-11600 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers and
thunderstorms early in the evening. Patchy
smoke through the night. Some thunderstorms may
produce gusty winds early in the evening.
Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....55-60.
24 hr trend......3 degrees warmer.
Max humidity........45-51 percent.
24 hr trend......17 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2400, then
southwest. Gusts up to 20 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then southwest.
Mixing Height.......4000-6000 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....85-90.
24 hr trend......6 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......6 percent drier.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 15 mph
until 1200, then 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3800-5800 ft agl until 1200, then 9800-11600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke early in the
evening.
Chance of thunder...0 percent.
Min temperature.....57-62.
24 hr trend......3 degrees warmer.
Max humidity........29-35 percent.
24 hr trend......18 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......2 degrees cooler.
Min humidity........11-17 percent.
24 hr trend......2 percent drier.
20-foot winds.......Breezy. Southwest winds around 10 mph with
gusts to around 30 mph until 1200, then west 20
to 25 mph with gusts to around 45 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
30 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10800-12800
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Clear. Lows around 50. West winds around 15 mph.
.MONDAY...Cooler, clear. Lows in the lower 40s. Highs in the
upper 60s. Northwest winds around 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 40s. Highs in the upper
60s. Southeast winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
mid 70s. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the mid 50s.
Highs in the upper 70s.
$$
WYZ140-012145-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
137 PM MDT Fri Jul 31 2026
.THIS AFTERNOON...
Sky/weather.........Mostly sunny. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....80-85.
24 hr trend......3 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......4 percent drier.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......10800-11800 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Patchy smoke.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......3 degrees warmer.
Max humidity........60-66 percent.
24 hr trend......14 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest around 10 mph until 2400, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 2400, then
southeast.
Mixing Height.......4600-6600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke through the day.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......4 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 30
mph until 1500, then around 20 mph with gusts
to around 30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 9200-11000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke early in the
evening.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......2 degrees warmer.
Max humidity........37-43 percent.
24 hr trend......21 percent drier.
Humidity recovery...Poor.
20-foot winds.......Southwest winds 10 to 15 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......4 degrees cooler.
Min humidity........18-24 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 40
mph until 1500, then around 20 mph with gusts
to around 40 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
30 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 9000-11000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Clear. Lows in the mid 40s. Southwest winds
around 10 mph.
.MONDAY THROUGH TUESDAY...Clear. Lows 38 to 43. Highs 69 to 74.
Winds generally less than 10 mph.
.WEDNESDAY...Clear. Lows in the upper 40s. Highs in the upper
70s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 80s.
.FRIDAY...Sunny. Highs around 80.
$$
WYZ415-012145-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....81-86.
24 hr trend......2 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......3 percent drier.
20-foot winds.......West winds around 10 mph with higher gusts.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......10200-12200 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Patchy smoke.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......3 degrees warmer.
Max humidity........54-60 percent.
24 hr trend......16 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph and gusty until 2100,
then downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 2400, then
southeast.
Mixing Height.......4000-6000 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......4 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph with gusts to around 25 mph until
1500, then southwest with gusts to around 25
mph.
Ridge top winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke early in the
evening.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......3 degrees warmer.
Max humidity........39-45 percent.
24 hr trend......18 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 15 mph until 2400, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......4400-6400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......3 degrees cooler.
Min humidity........20-26 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
15 to 20 mph with gusts to around 40 mph.
Ridge top winds.....South around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 25 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 9800-11800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY THROUGH WEDNESDAY...Clear. Lows 44 to 49. Highs 73 to 78.
Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Clear. Lows in the lower 50s. Highs in
the lower 80s.
$$
WYZ416-012145-
West Wind River Mountains/East Zone Bridger Teton NF-
137 PM MDT Fri Jul 31 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......3 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......1 percent drier.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......10200-12200 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers early in the
evening. Patchy smoke through the night. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......3 degrees warmer.
Max humidity........44-50 percent.
24 hr trend......19 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph until 2100, then
northeast until 0300, then downslope/downvalley
4-7 mph. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph until 2400, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 2400, then east.
Mixing Height.......3600-5600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......4 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke early in the
evening.
Chance of thunder...0 percent.
Min temperature.....52-57.
24 hr trend......3 degrees warmer.
Max humidity........27-33 percent.
24 hr trend......17 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West around 15 mph until 2400, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......Unchanged.
Min humidity........11-17 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 35
mph until 1500, then west around 20 mph with
gusts to around 35 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest
around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then around
25 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 11200-13200
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Clear. Lows around 50. West winds around 10 mph.
.MONDAY THROUGH TUESDAY...Clear. Lows 40 to 45. Highs in the
lower 70s. West winds around 10 mph.
.WEDNESDAY...Clear. Lows in the upper 40s. Highs in the mid 70s.
West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Clear. Lows in the lower 50s. Highs in
the upper 70s.
$$
WYZ288-012145-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
137 PM MDT Fri Jul 31 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....76-81.
24 hr trend......2 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......Unchanged.
20-foot winds.......North winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......10400-11600 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers early in the
evening. Patchy smoke through the night. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......4 degrees warmer.
Max humidity........37-43 percent.
24 hr trend......19 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then southwest.
Mixing Height.......4000-6000 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......5 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......6 percent drier.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 15 mph
until 1200, then 25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......3600-5600 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....54-59.
24 hr trend......3 degrees warmer.
Max humidity........20-26 percent.
24 hr trend......15 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......5200-7200 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......2 degrees warmer.
Min humidity........11-17 percent.
24 hr trend......3 percent drier.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 30 mph until 1200, then around 20 mph
with gusts to around 40 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then around
25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......3800-5800 ft agl until 1200, then 12000-14000
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds
around 10 mph.
.MONDAY THROUGH TUESDAY...Clear. Lows 43 to 48. Highs 72 to 77.
Northwest winds around 10 mph.
.WEDNESDAY...Clear. Lows in the lower 50s. Highs in the upper
70s. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the mid 50s.
Highs in the lower 80s.
$$
WYZ414-012145-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
137 PM MDT Fri Jul 31 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....78-83.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......6 percent drier.
20-foot winds.......West winds around 10 mph with higher gusts.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......10000-12000 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers early in the
evening. Patchy smoke through the night. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......3 degrees warmer.
Max humidity........52-58 percent.
24 hr trend......16 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....North around 15 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 2400, then
southeast.
Mixing Height.......3800-5800 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke through the day.
Chance of thunder...0 percent.
Max temperature.....82-87.
24 hr trend......4 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph. Gusts up to 20 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......3200-5200 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke early in the
evening.
Chance of thunder...0 percent.
Min temperature.....52-57.
24 hr trend......3 degrees warmer.
Max humidity........32-38 percent.
24 hr trend......15 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Southwest around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......4600-6600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......1 degree cooler.
Min humidity........12-18 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 15 mph with gusts to around 35 mph.
Ridge top winds.....South around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west
around 25 mph.
Mixing Height.......3400-5400 ft agl until 1200, then 10800-12800
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY THROUGH WEDNESDAY...Clear. Lows 47 to 52. Highs 76 to 81.
Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Clear. Lows in the mid 50s. Highs in
the lower 80s.
$$
WYZ278-012145-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....80-85.
24 hr trend......2 degrees warmer.
Min humidity........14-20 percent.
24 hr trend......3 percent drier.
20-foot winds.......Northwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Northwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 20 mph.
Mixing Height.......11200-13200 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers early in the
evening. Patchy smoke through the night. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......4 degrees warmer.
Max humidity........49-55 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph and gusty until
2100, then downslope/downvalley 4-7 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......4600-6600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....84-89.
24 hr trend......4 degrees warmer.
Min humidity........10-16 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph with higher gusts.
Ridge top winds.....Northeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then west.
Mixing Height.......1800-3800 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......1 degree warmer.
Max humidity........31-37 percent.
24 hr trend......18 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds around 10 mph and gusty until 2400,
then downslope/downvalley 4-7 mph.
Ridge top winds.....West around 15 mph until 2400, then north.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......6000-8000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......2 degrees warmer.
Min humidity........9-15 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 15 to 20 mph with gusts to around 35
mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 25 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 11800-13800
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. Northwest
winds around 10 mph.
.MONDAY THROUGH WEDNESDAY...Clear. Lows 46 to 51. Highs 82 to 87.
Northwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Clear. Lows in the mid 50s. Highs in
the upper 80s.
$$
WYZ277-012145-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....81-86.
24 hr trend......4 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......5 percent drier.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......12000-14000 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Patchy smoke.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......5 degrees warmer.
Max humidity........46-52 percent.
24 hr trend......7 percent drier.
Humidity recovery...Moderate.
20-foot winds.......North winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......5600-7600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke through the day.
Chance of thunder...0 percent.
Max temperature.....85-90.
24 hr trend......4 degrees warmer.
Min humidity........7-13 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph. Gusts up to 20 mph.
Ridge top winds.....East around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then west.
Mixing Height.......1600-3600 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......2 degrees warmer.
Max humidity........25-31 percent.
24 hr trend......18 percent drier.
Humidity recovery...Poor.
20-foot winds.......West winds 10 to 15 mph and gusty until 2400,
then downslope/downvalley 4-7 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......5600-7600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......Unchanged.
Min humidity........8-14 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
15 to 20 mph with gusts to around 30 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 25 mph.
Mixing Height.......3600-5600 ft agl until 1200, then 12400-14400
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest
winds around 10 mph.
.MONDAY THROUGH WEDNESDAY...Clear. Lows 49 to 54. Highs 84 to 89.
West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Clear. Lows in the upper 50s. Highs
around 90.
$$
WYZ279-012145-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Mostly sunny. Patchy smoke through the day.
Isolated showers early in the evening. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......5 percent drier.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......13000-14000 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers early in the
evening. Patchy smoke through the night. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....55-60.
24 hr trend......4 degrees warmer.
Max humidity........41-47 percent.
24 hr trend......11 percent drier.
Humidity recovery...Moderate.
20-foot winds.......North winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....North around 15 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then east.
Mixing Height.......6200-8200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....85-90.
24 hr trend......3 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......2600-4600 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......2 degrees warmer.
Max humidity........31-37 percent.
24 hr trend......16 percent drier.
Humidity recovery...Poor.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......5600-7600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....89-94.
24 hr trend......4 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......3600-5600 ft agl until 1200, then 13000-15000
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the upper 50s. West winds
around 10 mph.
.MONDAY THROUGH WEDNESDAY...Mostly clear. Lows 52 to 57. Highs
86 to 91. Northwest winds 10 to 15 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows around 60. Highs in
the lower 90s.
$$
WYZ289-012145-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
137 PM MDT Fri Jul 31 2026
...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 10 PM MDT
SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING...
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke through the day.
Isolated showers and thunderstorms early in the
evening. Some thunderstorms may produce gusty
winds early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....81-86.
24 hr trend......3 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......5 percent drier.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......11800-13000 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers early in the
evening. Patchy smoke through the night. Chance
of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....56-61.
24 hr trend......3 degrees warmer.
Max humidity........45-51 percent.
24 hr trend......14 percent drier.
Humidity recovery...Moderate.
20-foot winds.......North winds around 10 mph until 2100, then
northeast until 2400, then downslope/downvalley
4-7 mph. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 2400, then
southeast.
Mixing Height.......5200-7200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......4 degrees warmer.
Min humidity........8-14 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph with higher gusts.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 10800-12800
ft agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....60-65.
24 hr trend......4 degrees warmer.
Max humidity........22-28 percent.
24 hr trend......22 percent drier.
Humidity recovery...Poor.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......5800-7800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....90-95.
24 hr trend......4 degrees warmer.
Min humidity........2-8 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900. Winds west
around 20 mph with gusts to around 35 mph after
1500.
Ridge top winds.....Southwest around 10 mph until 1200, then around
20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......3600-5600 ft agl until 1200, then 13400-15400
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 60s. West winds
around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
80s. North winds around 15 mph.
.TUESDAY...Clear. Lows in the lower 50s. Highs in the lower 80s.
Northeast winds around 10 mph.
.WEDNESDAY...Clear. Lows in the upper 50s. Highs in the upper
80s. Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows around 60. Highs in
the lower 90s.
$$
WYZ300-012145-
Casper Mountain-
137 PM MDT Fri Jul 31 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Patchy smoke. Isolated showers
and thunderstorms. Some thunderstorms may
produce gusty winds. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....82-87.
24 hr trend......4 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......10 percent drier.
20-foot winds.......North winds around 10 mph with higher gusts.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......11000-13000 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Patchy smoke through the night.
Chance of thunder...10 percent.
Min temperature.....55-60.
24 hr trend......4 degrees warmer.
Max humidity........46-52 percent.
24 hr trend......8 percent drier.
Humidity recovery...Moderate.
20-foot winds.......East winds around 10 mph until 2400, then
southeast. Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny. Patchy smoke.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......5 degrees warmer.
Min humidity........11-17 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west.
Mixing Height.......3400-5400 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear. Patchy smoke in the evening.
Chance of thunder...0 percent.
Min temperature.....61-66.
24 hr trend......6 degrees warmer.
Max humidity........27-33 percent.
24 hr trend......19 percent drier.
Humidity recovery...Poor.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
south 10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......5600-7600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....91-96.
24 hr trend......5 degrees warmer.
Min humidity........4-10 percent.
24 hr trend......4 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1200, then
west. Gusts up to 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......3800-5800 ft agl until 1200, then 13200-15200
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly clear. Lows in the lower 60s. Winds
generally less than 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows 48 to 53. Highs
76 to 81. East winds 10 to 15 mph.
.WEDNESDAY...Clear. Lows in the upper 50s. Highs in the mid 80s.
Winds generally less than 10 mph.
.THURSDAY THROUGH FRIDAY...Mostly clear. Lows in the lower 60s.
Highs in the upper 80s.
$$