Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
142
FNUS55 KRIW 071918
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
118 PM MDT Sun Sep 7 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
The coverage of showers and thunderstorms increases late Sunday
afternoon as a weak weather disturbance moves east through the
district. The showers and storms continue much of Sunday evening
before slowly tapering off early Monday morning. Brief heavy rain
and gusty outflow wind 35 to 45 mph are possible with stronger
showers and storms. A few late day showers occur Monday afternoon,
otherwise conditions will be dry and slightly warmer. The midweek
pattern is looking breezy to windy from the south-southwest.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Scattered showers and thunderstorms persist through Sunday evening
with the best chance over the mountains and adjacent foothills as a
weak weather disturbance moves east through the district. Brief
heavy rain and gusty outflow wind 35 to 45 mph are possible with the
stronger showers and storms. A few showers linger overnight across
the north half of the region. Isolated late day showers occur Monday
over the mountains, otherwise conditions will be dry and slightly
warmer. The midweek pattern is looking breezy to windy from the
south-southwest, especially in the mountains.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Isolated to scattered showers and thunderstorms persist through
Sunday evening, especially over areas west of the Continental
Divide. Brief heavy rain and gusty outflow wind 35 to 45 mph are
possible with stronger showers and storms, mainly in Zone 279. A
few late day showers may work their way off the Uinta Mountains
into southern Zone 279 late Monday. Otherwise conditions will be
dry and slightly warmer. The midweek pattern is looking breezy to
windy from the south-southwest.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-082130-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Areas of smoke. Slight chance of
showers and thunderstorms. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....78-83.
24 hr trend......3 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......5 percent wetter.
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.......9000-10600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Areas of
smoke through the night. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....52-57.
24 hr trend......5 degrees warmer.
Max humidity........60-66 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
west around 10 mph. Gusts up to 25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy. Areas
of smoke early in the morning.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......1 degree warmer.
Min humidity........15-21 percent.
24 hr trend......4 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......2 degrees cooler.
Max humidity........51-57 percent.
24 hr trend......6 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.....Northwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....78-83.
24 hr trend......1 degree cooler.
Min humidity........21-27 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph with gusts to around 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY THROUGH THURSDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows 50 to 55. Highs 81 to 86.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs around 70.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
$$
WYZ283-082130-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Areas of smoke through the day.
Slight chance of showers and thunderstorms
through the day. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....76-81.
24 hr trend......2 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......4 percent wetter.
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.....West around 20 mph.
Mixing Height.......9200-11200 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Areas of
smoke until early morning. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....48-53.
24 hr trend......2 degrees cooler.
Max humidity........58-64 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......1 degree warmer.
Min humidity........18-24 percent.
24 hr trend......4 percent drier.
20-foot winds.......Southwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......Unchanged.
Max humidity........49-55 percent.
24 hr trend......11 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 0300, 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.....Northwest 10 to 15 mph.
Mixing Height.......4000-6000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning. Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......2 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200. Winds
south around 10 mph after 1500. Gusts up to 20
mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the lower 50s. Highs in the
lower 80s. Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the upper 70s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the lower 70s.
West winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the upper
60s.
.SUNDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ285-082130-
South Bighorn Mountains-
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Areas of smoke through the day.
Chance of thunder...10 percent.
Max temperature.....72-77.
24 hr trend......2 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......8 percent wetter.
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.......7200-9200 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Areas of smoke until early
morning.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......1 degree cooler.
Max humidity........56-62 percent.
24 hr trend......19 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph and gusty.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......Unchanged.
Min humidity........20-26 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 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......Unchanged.
Max humidity........47-53 percent.
24 hr trend......8 percent drier.
Humidity recovery...Moderate.
20-foot winds.......North winds around 10 mph until 2400, then
northeast until 0300, then downslope/downvalley
4-7 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then east.
Mixing Height.......2600-4600 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....71-76.
24 hr trend......Unchanged.
Min humidity........24-30 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the lower 50s.
Southeast winds around 10 mph.
.WEDNESDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 70s. South
winds around 15 mph.
.THURSDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the mid
70s. Southwest winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. West
winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the lower
60s.
.SUNDAY...Mostly sunny. Highs in the upper 60s.
$$
WYZ281-082130-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Areas of
smoke through the day. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Max temperature.....78-83.
24 hr trend......7 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......8400-10400 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Areas of smoke through the
night.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......6 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......12 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
west around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny. Areas of smoke early in the
morning. Areas of smoke late in the morning.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......1 degree cooler.
Min humidity........23-29 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then north.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 8400-10400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....52-57.
24 hr trend......Unchanged.
Max humidity........54-60 percent.
24 hr trend......2 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....North around 10 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....78-83.
24 hr trend......1 degree warmer.
Min humidity........24-30 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the mid 50s. South winds
around 10 mph.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows 53 to 58. Highs 83 to 88.
Southwest winds around 10 mph.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows around 50. Highs in the mid 70s. West winds
around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the
lower 70s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 70s.
$$
WYZ282-082130-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Areas of smoke. Slight chance of
showers and thunderstorms. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......2 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......9 percent wetter.
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.......6400-8400 ft agl.
Smoke dispersal.....Good.
.TONIGHT...
Sky/weather.........Partly cloudy. Areas of smoke.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......2 degrees cooler.
Max humidity........61-67 percent.
24 hr trend......21 percent wetter.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 2400, then south.
Mixing Height.......1800-3800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......1 degree warmer.
Min humidity........17-23 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 1200, then north.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......1200-3200 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......Unchanged.
Max humidity........47-53 percent.
24 hr trend......14 percent drier.
Humidity recovery...Moderate.
20-foot winds.......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.....Northeast around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 2400, then
southwest.
Mixing Height.......3000-5000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
afternoon. Slight chance of thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....75-80.
24 hr trend......Unchanged.
Min humidity........20-26 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then south
around 10 mph with higher gusts.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs in the mid
80s. South winds around 10 mph.
.THURSDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the
lower 80s. Southwest winds around 10 mph.
.FRIDAY...Mostly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the
lower 70s.
.SUNDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ275-082130-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Areas of smoke. Slight chance of
showers and thunderstorms. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....71-76.
24 hr trend......2 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......9 percent wetter.
20-foot winds.......West winds around 10 mph and gusty.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.5 percent.
Transport winds.....West around 15 mph.
Mixing Height.......4800-6800 ft agl.
Smoke dispersal.....Fair to good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms early in the evening. Areas of
smoke in the evening. Chance of precipitation
20 percent.
Chance of thunder...10 percent.
Min temperature.....49-54.
24 hr trend......Unchanged.
Max humidity........62-68 percent.
24 hr trend......23 percent wetter.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2400, then south.
Mixing Height.......1000-3000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......1 degree warmer.
Min humidity........19-25 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then north
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......1200-3200 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......Unchanged.
Max humidity........48-54 percent.
24 hr trend......15 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northeast around 10 mph until 2400, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 2400, then
northwest.
Mixing Height.......2800-4800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......Unchanged.
Min humidity........20-26 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then south
around 10 mph with higher gusts.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the mid 50s. Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 80s. South
winds around 10 mph.
.THURSDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the
lower 80s. Southwest winds around 10 mph.
.FRIDAY...Mostly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 70s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the
lower 70s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the mid 70s.
$$
WYZ276-082130-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Areas of smoke through the day.
Chance of showers and thunderstorms early in
the evening. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....74-79.
24 hr trend......1 degree warmer.
Min humidity........28-34 percent.
24 hr trend......12 percent wetter.
20-foot winds.......North winds around 10 mph and gusty.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.10 percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......4600-6600 ft agl.
Smoke dispersal.....Good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms
early in the evening. Areas of smoke in the
evening. Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....50-55.
24 hr trend......3 degrees cooler.
Max humidity........56-62 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph until 2100, then
west. Gusts up to 25 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1400-3400 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......2 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......5 percent drier.
20-foot winds.......West winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West around 15 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......Unchanged.
Max humidity........42-48 percent.
24 hr trend......15 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph until 2400, then
west until 0300, 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 10 to 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....72-77.
24 hr trend......2 degrees cooler.
Min humidity........29-35 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the lower 50s. Winds generally
less than 10 mph.
.WEDNESDAY...Mostly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows around 50. Highs in the mid 70s. Winds
generally less than 10 mph.
.FRIDAY...Mostly cloudy with showers likely and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the mid
60s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 70s.
$$
WYZ287-082130-
Owl Creek Mountains-
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Areas of smoke. Slight chance of
showers and thunderstorms. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....71-76.
24 hr trend......1 degree warmer.
Min humidity........24-30 percent.
24 hr trend......9 percent wetter.
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.......5400-7400 ft agl.
Smoke dispersal.....Good.
.TONIGHT...
Sky/weather.........Partly cloudy. Areas of smoke until early
morning.
Chance of thunder...10 percent.
Min temperature.....50-55.
24 hr trend......3 degrees cooler.
Max humidity........50-56 percent.
24 hr trend......11 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 10 mph until 2400, then
west. Gusts up to 20 mph.
Ridge top winds.....Northwest around 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......2 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......6 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph until 1500, then northwest. Gusts
up to 20 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then
northwest.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......Unchanged.
Max humidity........43-49 percent.
24 hr trend......10 percent drier.
Humidity recovery...Moderate.
20-foot winds.......North winds around 10 mph until 2100, then west
until 0300, then downslope/downvalley 4-7 mph.
Gusts up to 15 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3400-5400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the morning, then
chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....69-74.
24 hr trend......3 degrees cooler.
Min humidity........26-32 percent.
24 hr trend......5 percent wetter.
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 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows in the lower 50s. Winds generally
less than 10 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the
upper 70s. Southwest winds around 10 mph.
.THURSDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows around 50. Highs in the mid 70s.
Southwest winds around 10 mph.
.FRIDAY...Mostly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 60s. West
winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the mid
60s.
.SUNDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 60s.
$$
WYZ286-082130-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Areas of smoke. Chance of
showers and thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....66-71.
24 hr trend......5 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......16 percent wetter.
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.5 percent.
Transport winds.....West around 20 mph.
Mixing Height.......6200-8200 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Areas of smoke in the evening. Slight chance of
thunderstorms early in the evening. Slight
chance of showers in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....44-49.
24 hr trend......4 degrees cooler.
Max humidity........70-76 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....67-72.
24 hr trend......1 degree warmer.
Min humidity........24-30 percent.
24 hr trend......11 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......1 degree warmer.
Max humidity........47-53 percent.
24 hr trend......22 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 0300, 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.......3400-5400 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of showers in the morning, then
chance of showers and slight chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....64-69.
24 hr trend......3 degrees cooler.
Min humidity........32-38 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 20 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the mid 40s. Highs in
the mid 60s. Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
Southwest winds around 10 mph.
.FRIDAY...Mostly cloudy with showers and chance of thunderstorms.
Lows around 40. Highs in the mid 50s. West winds around 10 mph.
.SATURDAY...Partly cloudy with showers likely and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the mid 50s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs around 60.
$$
WYZ140-082130-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Areas of smoke. Chance of
showers and thunderstorms. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....66-71.
24 hr trend......5 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......14 percent wetter.
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.5 percent.
Transport winds.....West around 20 mph.
Mixing Height.......7000-8600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Areas of smoke early in the evening. Chance of
showers in the evening. Slight chance of
thunderstorms in the evening. Slight chance of
showers late in the evening. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....39-44.
24 hr trend......6 degrees cooler.
Max humidity........82-88 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph and gusty until 2100,
then downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 15 mph until 2400, then south.
Chc of wetting rain.15 percent until 2400, then zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......2600-4600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....67-72.
24 hr trend......Unchanged.
Min humidity........29-35 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 20 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.......1800-3800 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....40-45.
24 hr trend......1 degree warmer.
Max humidity........62-68 percent.
24 hr trend......28 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph and gusty until
2100, then downslope/downvalley 4-7 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.......3400-5400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
morning, then chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....65-70.
24 hr trend......1 degree cooler.
Min humidity........44-50 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast around 10 mph.
Chc of wetting rain.Zero percent until 1200, then 25 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.TUESDAY THROUGH THURSDAY...Mostly cloudy. Chance of showers and
slight chance of thunderstorms. Lows 37 to 42. Highs 62 to 67.
Winds generally less than 10 mph.
.FRIDAY...Mostly cloudy with showers likely and chance of
thunderstorms. Lows in the mid 30s. Highs in the upper 50s. Winds
generally less than 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the mid 50s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 50s.
$$
WYZ415-082130-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Areas of smoke. Chance of
showers and thunderstorms. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....66-71.
24 hr trend......5 degrees cooler.
Min humidity........34-40 percent.
24 hr trend......9 percent wetter.
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.5 percent.
Transport winds.....West around 20 mph.
Mixing Height.......7000-9000 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Areas of smoke early in the evening. Chance of
showers in the evening. Slight chance of
thunderstorms in the evening. Slight chance of
showers late in the evening. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Min temperature.....40-45.
24 hr trend......5 degrees cooler.
Max humidity........79-85 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph and gusty until 2100,
then downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 15 mph until 2400, then south.
Chc of wetting rain.15 percent until 2400, then zero percent.
Transport winds.....Southwest around 15 mph until 2400, then south.
Mixing Height.......2400-4400 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Areas of smoke late in the
afternoon.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......Unchanged.
Min humidity........30-36 percent.
24 hr trend......8 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 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
around 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....41-46.
24 hr trend......2 degrees warmer.
Max humidity........68-74 percent.
24 hr trend......24 percent drier.
Humidity recovery...Good.
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 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 2400, then southeast.
Mixing Height.......3200-5200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms late in
the morning, then showers likely and chance of
thunderstorms in the afternoon. Chance of
precipitation 70 percent.
Chance of thunder...30 percent.
Max temperature.....64-69.
24 hr trend......1 degree cooler.
Min humidity........44-50 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent until 1200, then 25 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY THROUGH WEDNESDAY...Mostly cloudy with chance of showers
and slight chance of thunderstorms. Lows in the lower 40s. Highs
in the mid 60s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the lower 60s.
Winds generally less than 10 mph.
.FRIDAY...Mostly cloudy with showers and chance of thunderstorms.
Lows in the upper 30s. Highs in the mid 50s. Winds generally less
than 10 mph.
.SATURDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the mid 30s. Highs in the mid 50s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs around 60.
$$
WYZ416-082130-
West Wind River Mountains/East Zone Bridger Teton NF-
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Areas of smoke early in the
evening. Slight chance of showers and
thunderstorms through the day. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....63-68.
24 hr trend......4 degrees cooler.
Min humidity........32-38 percent.
24 hr trend......8 percent wetter.
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.5 percent.
Transport winds.....West around 20 mph.
Mixing Height.......7000-9000 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms in
the evening. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....39-44.
24 hr trend......4 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2400, then
southwest.
Mixing Height.......1800-3800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Areas of
smoke late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....62-67.
24 hr trend......Unchanged.
Min humidity........28-34 percent.
24 hr trend......7 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 25 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 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....41-46.
24 hr trend......3 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......19 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.....Northwest around 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2400, then
southeast.
Mixing Height.......3400-5400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly cloudy. Chance of showers through the
day. Slight chance of thunderstorms in the late
morning and early afternoon, then chance of
thunderstorms late in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...30 percent.
Max temperature.....61-66.
24 hr trend......1 degree cooler.
Min humidity........36-42 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then chance of showers
after midnight. Lows in the lower 40s. Winds generally less than
10 mph.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with chance of
showers and slight chance of thunderstorms. Lows 37 to 42. Highs
59 to 64. South winds around 10 mph.
.FRIDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the mid 30s. Highs in the lower 50s. West
winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the mid 30s. Highs in the lower 50s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the upper 50s.
$$
WYZ288-082130-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Areas of smoke. Slight chance of
showers and thunderstorms. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....66-71.
24 hr trend......2 degrees cooler.
Min humidity........30-36 percent.
24 hr trend......6 percent wetter.
20-foot winds.......West winds around 20 mph with gusts to around
30 mph.
Ridge top winds.....West around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......7400-9400 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Areas of smoke early in the evening. Slight
chance of thunderstorms early in the evening.
Slight chance of showers in the evening. Chance
of precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....44-49.
24 hr trend......3 degrees cooler.
Max humidity........60-66 percent.
24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 20 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms late in the afternoon. Areas of
smoke late in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......Unchanged.
Min humidity........25-31 percent.
24 hr trend......8 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......1 degree warmer.
Max humidity........48-54 percent.
24 hr trend......12 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 0300, 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.......3600-5600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly cloudy. Chance of showers through the
day. Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....64-69.
24 hr trend......2 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......11 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph with gusts to around 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.TUESDAY THROUGH THURSDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows 42 to 47. Highs 63 to
68. Southwest winds around 10 mph.
.FRIDAY...Mostly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
West winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 30s. Highs in the mid
50s.
.SUNDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 60s.
$$
WYZ414-082130-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Chance of showers and
thunderstorms. Chance of precipitation 40
percent.
Chance of thunder...30 percent.
Max temperature.....66-71.
24 hr trend......4 degrees cooler.
Min humidity........33-39 percent.
24 hr trend......9 percent wetter.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.10 percent.
Transport winds.....West around 20 mph.
Mixing Height.......6800-8800 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of showers early in the
evening. Slight chance of thunderstorms in the
evening. Slight chance of showers in the
evening. Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Min temperature.....40-45.
24 hr trend......Unchanged.
Max humidity........76-82 percent.
24 hr trend......17 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph and gusty until 2100,
then downslope/downvalley 4-7 mph.
Ridge top winds.....West around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 2400, then south.
Mixing Height.......2400-4400 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Areas of smoke late in the
afternoon.
Chance of thunder...0 percent.
Max temperature.....67-72.
24 hr trend......Unchanged.
Min humidity........25-31 percent.
24 hr trend......10 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph with gusts to around 25 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
around 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers after
midnight. Slight chance of thunderstorms early
in the morning. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......2 degrees warmer.
Max humidity........69-75 percent.
24 hr trend......11 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....West around 10 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 2400, then south.
Mixing Height.......3400-5400 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers and slight chance of
thunderstorms in the morning, then showers
likely and chance of thunderstorms in the
afternoon. Chance of precipitation 60 percent.
Chance of thunder...30 percent.
Max temperature.....66-71.
24 hr trend......1 degree cooler.
Min humidity........33-39 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph. Gusts up to 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.7 percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then chance of showers
after midnight. Lows in the mid 40s. Winds generally less than
10 mph.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with chance of
showers and slight chance of thunderstorms. Lows 39 to 44. Highs
63 to 68. South winds around 10 mph.
.FRIDAY...Mostly cloudy with showers and chance of thunderstorms.
Lows in the upper 30s. Highs in the upper 50s. Winds generally
less than 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 50s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Highs in the lower 60s.
$$
WYZ277>279-082130-
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Evanston, Fort Bridger, Kemmerer,
Big Piney, Farson, Pinedale, Green River, Rock Springs,
and Wamsutter
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms through the day. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....68-73.
24 hr trend......2 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......3 percent wetter.
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.......7600-9600 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Min temperature.....42-47.
24 hr trend......3 degrees cooler.
Max humidity........74-80 percent.
24 hr trend......5 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 15 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy. Areas of smoke late in the
afternoon.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......1 degree warmer.
Min humidity........30-36 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph with gusts to around 25 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.......1400-3400 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers after
midnight. Slight chance of thunderstorms early
in the morning. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Min temperature.....44-49.
24 hr trend......2 degrees warmer.
Max humidity........63-69 percent.
24 hr trend......17 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph and gusty until 2100,
then downslope/downvalley 4-7 mph.
Ridge top winds.....West around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 2400, then south.
Mixing Height.......4200-6200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Chance of showers in the
morning. Slight chance of thunderstorms through
the day. Slight chance of showers in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....68-73.
24 hr trend......1 degree cooler.
Min humidity........31-37 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph with gusts to around 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the upper 40s. Winds generally less than
10 mph.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
South winds around 10 mph.
.THURSDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the lower 70s. South
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows around 40. Highs in the mid 60s. West winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 60s.
.SUNDAY...Mostly sunny. Highs in the upper 60s.
$$
WYZ289-082130-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Areas of smoke through the day.
Slight chance of showers and thunderstorms
through the day. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....72-77.
24 hr trend......Unchanged.
Min humidity........21-27 percent.
24 hr trend......4 percent wetter.
20-foot winds.......West winds around 20 mph with gusts to around
30 mph.
Ridge top winds.....West around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......8200-10200 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Partly cloudy. Areas of smoke early in the
evening. Slight chance of thunderstorms early
in the evening. Slight chance of showers early
in the evening. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....49-54.
24 hr trend......4 degrees cooler.
Max humidity........61-67 percent.
24 hr trend......4 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 30 mph
until 2400, then 20 mph.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph.
Mixing Height.......3200-5200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......Unchanged.
Min humidity........16-22 percent.
24 hr trend......4 percent drier.
20-foot winds.......West winds 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......1 degree warmer.
Max humidity........50-56 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 2100, then downslope/downvalley
4-7 mph.
Ridge top winds.....Southwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Chance of showers through the
day. Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....72-77.
24 hr trend......1 degree cooler.
Min humidity........24-30 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph with gusts to around 25 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight. Lows around 50. South winds around
10 mph.
.WEDNESDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
South winds around 10 mph.
.THURSDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Southwest winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 40s. Highs in the mid
60s.
.SUNDAY...Mostly sunny. Highs around 70.
$$
WYZ300-082130-
Casper Mountain-
118 PM MDT Sun Sep 7 2025
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....71-76.
24 hr trend......1 degree warmer.
Min humidity........29-35 percent.
24 hr trend......10 percent wetter.
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.......8000-9000 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy. Areas of smoke early in the
evening.
Chance of thunder...10 percent.
Min temperature.....50-55.
24 hr trend......1 degree warmer.
Max humidity........60-66 percent.
24 hr trend......Unchanged.
Humidity recovery...Good.
20-foot winds.......West 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.....West 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......1 degree warmer.
Min humidity........20-26 percent.
24 hr trend......11 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 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......1 degree cooler.
Max humidity........43-49 percent.
24 hr trend......18 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 2400, then south.
Mixing Height.......3200-5200 ft agl until 2400, then 200-400 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....72-77.
24 hr trend......Unchanged.
Min humidity........27-33 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Fair to good.
.Forecast days 3 through 7......
.TUESDAY THROUGH THURSDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows 50 to 55. Highs 73 to 78. South
winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Southwest winds around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs in the lower
60s.
.SUNDAY...Mostly sunny. Highs in the upper 60s.
$$