Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
523
FNUS55 KRIW 252036
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
236 PM MDT Fri Sep 25 2026
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Dry weather is expected across the Dispatch Area through Saturday
night. Widespread breezy south to southwest winds continue through
1900L. Gusty winds are then confined to high elevations and northern
portions of Zone 140 through 0500L Saturday. Relative humidity
begins improving after 1900L to good to excellent overnight humidity
recovery. 3 to 10 percent higher humidity and up to 10 degrees
cooler on Saturday with increasing afternoon clouds and gusty
southwest winds. Shower chances increase across the Dispatch Area on
Sunday morning.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Dry weather is expected across most of the Dispatch Area. The
exception is Zone 289 due to isolated showers until 1600L. Breezy
south winds for all zones except Zones 286 and 288 where winds are
from the west to southwest. Basin zones become light after sunset.
Winds gust up to 40 mph across Zone 286 and 288 from 2100L until
0500L Saturday. Relative humidity begins improving after 1900L to
fair to good overnight humidity recovery. Up to 3 degrees warmer on
Saturday with increasing afternoon clouds, gusty west winds, and
minimum relative humidity values in the 20 to 30 percent range.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Dry weather is expected across most of the Dispatch Area today. The
exceptions are Zones 280, 281, 289, and 300 where isolated showers
and thunderstorms are possible through 1700L. Gusty west winds for
southern zones continues through 2100L. For Zones 289 and north,
south to southwest winds persist until 0200L Saturday. A cold front
drops into Zone 281 and 280 between 0400L and 0800L, and shifts
winds to be northerly. A brief period of gusty north winds is
expected with the front in Zone 281. Relative humidity begins
improving after 1900L to fair to good overnight humidity recovery. 2
to 6 degrees warmer on Saturday with increasing afternoon clouds,
gusty southwest winds, and minimum relative humidity values in the
20 to 30 percent range.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-262245-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Slight chance of showers and
thunderstorms early in the evening. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....71-76.
24 hr trend......Unchanged.
Min humidity........35-41 percent.
24 hr trend......9 percent wetter.
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.....Southwest around 20 mph.
Mixing Height.......5600-6800 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......3 degrees warmer.
Max humidity........45-51 percent.
24 hr trend......42 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 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.......1600-3600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......5 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......12 percent drier.
20-foot winds.......West winds around 10 mph with higher gusts
until 0900, then northeast with higher gusts
until 1200, then southwest with gusts to around
35 mph.
Ridge top winds.....North around 15 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 1200, then
southwest.
Mixing Height.......400-2400 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......2 degrees cooler.
Max humidity........52-58 percent.
24 hr trend......10 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 30 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......Unchanged.
Min humidity........23-29 percent.
24 hr trend......1 percent wetter.
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.....South around 10 mph until 1200, then southwest
around 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY THROUGH MONDAY...Cooler. Mostly cloudy with chance of
showers and slight chance of thunderstorms. Lows 44 to 49. Highs
in the upper 60s. North winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers. Lows in
the mid 40s. Highs in the upper 60s. Winds generally less than
10 mph.
.WEDNESDAY...Mostly clear. Lows in the mid 40s. Highs around 70.
West winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s.
.FRIDAY...Partly cloudy. Highs in the lower 70s.
$$
WYZ283-262245-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......2 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......1 percent wetter.
20-foot winds.......South winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......6200-8200 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree warmer.
Max humidity........49-55 percent.
24 hr trend......20 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......2 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......5 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 25
mph until 1200, then 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......800-2800 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......Unchanged.
Max humidity........55-61 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 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 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......1 degree cooler.
Min humidity........28-34 percent.
24 hr trend......4 percent wetter.
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.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 20 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers in the
evening, then chance of showers after midnight. Lows around 50.
Southwest winds around 10 mph.
.MONDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds
generally less than 10 mph.
.TUESDAY...Mostly clear with slight chance of showers. Lows in
the mid 40s. Highs in the upper 60s. Winds generally less than
10 mph.
.WEDNESDAY...Mostly clear. Lows in the mid 40s. Highs around 70.
Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 70s.
.FRIDAY...Partly cloudy. Highs in the upper 60s.
$$
WYZ285-262245-
South Bighorn Mountains-
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......Unchanged.
Min humidity........34-40 percent.
24 hr trend......4 percent wetter.
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.....Southwest around 20 mph.
Mixing Height.......5400-6800 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......2 degrees warmer.
Max humidity........41-47 percent.
24 hr trend......26 percent drier.
Humidity recovery...Moderate.
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.......1400-3400 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......2 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......9 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.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......800-2800 ft agl until 1200, then 5000-7000 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......2 degrees cooler.
Max humidity........47-53 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....West 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.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......1 degree cooler.
Min humidity........29-35 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
10 to 15 mph with gusts to around 30 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 southwest
around 20 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY THROUGH MONDAY...Mostly cloudy with chance of showers and
slight chance of thunderstorms. Lows 43 to 48. Highs around 60.
North winds around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 40s.
Highs in the lower 60s. West winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 40s. Highs in the mid
60s.
.FRIDAY...Partly cloudy. Highs in the lower 60s.
$$
WYZ281-262245-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......1 degree cooler.
Min humidity........32-38 percent.
24 hr trend......10 percent wetter.
20-foot winds.......South winds around 20 mph with gusts to around
35 mph.
Ridge top winds.....South around 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 25 mph.
Mixing Height.......5800-6800 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......Unchanged.
Max humidity........52-58 percent.
24 hr trend......29 percent drier.
Humidity recovery...Moderate.
20-foot winds.......South winds 10 to 15 mph until 0300, then west.
Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 20 mph until 2400, then west.
Mixing Height.......800-2800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......1 degree cooler.
Min humidity........29-35 percent.
24 hr trend......4 percent drier.
20-foot winds.......North winds around 15 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 30 mph.
Ridge top winds.....North around 15 mph until 1200, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 1200, then south.
Mixing Height.......600-2400 ft agl until 1200, then 2800-4800 ft
agl.
Smoke dispersal.....Poor to fair.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......4 degrees cooler.
Max humidity........53-59 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Northeast winds around 10 mph until 2100, then
northwest until 0300, then downslope/downvalley
4-7 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph.
Mixing Height.......400-1600 ft agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......2 degrees cooler.
Min humidity........33-39 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then east
around 10 mph with higher gusts.
Ridge top winds.....North around 10 mph until 1200, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 1200, then south.
Mixing Height.......400-2000 ft agl until 1200, then 2800-4800 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows in the upper 40s.
Winds generally less than 10 mph.
.MONDAY...Mostly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 40s.
Highs in the lower 70s. Northwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 70s.
.FRIDAY...Partly cloudy. Highs in the upper 60s.
$$
WYZ282-262245-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......1 degree warmer.
Min humidity........26-32 percent.
24 hr trend......3 percent wetter.
20-foot winds.......South winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....South around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......6200-8000 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......1 degree cooler.
Max humidity........42-48 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
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.......1600-3600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......1 degree warmer.
Min humidity........21-27 percent.
24 hr trend......4 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 15
mph until 1200, then 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 around
20 mph.
Mixing Height.......600-2600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......3 degrees cooler.
Max humidity........50-56 percent.
24 hr trend......9 percent wetter.
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.....West around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....68-73.
24 hr trend......6 degrees cooler.
Min humidity........26-32 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200. Winds
north around 10 mph after 1500. Gusts up to 15
mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 1200, then south.
Mixing Height.......400-2000 ft agl until 1200, then 2400-4400 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers in the
evening, then chance of showers after midnight. Lows in the upper
40s. Winds generally less than 10 mph.
.MONDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 40s.
Highs in the lower 70s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 70s.
.FRIDAY...Partly cloudy. Highs in the upper 60s.
$$
WYZ275-262245-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......2 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds around 15 mph with gusts to around
30 mph.
Ridge top winds.....South around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 20 mph.
Mixing Height.......6400-8000 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......1 degree warmer.
Max humidity........44-50 percent.
24 hr trend......5 percent drier.
Humidity recovery...Moderate.
20-foot winds.......South winds around 10 mph with gusts to around
25 mph until 2400, then downslope/downvalley
4-7 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 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....67-72.
24 hr trend......3 degrees cooler.
Min humidity........22-28 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......400-2400 ft agl until 1200, then 3800-5800 ft
agl.
Smoke dispersal.....Poor to fair.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......4 degrees cooler.
Max humidity........50-56 percent.
24 hr trend......4 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.....Northwest around 15 mph.
Mixing Height.......800-2800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor.
.SUNDAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....63-68.
24 hr trend......7 degrees cooler.
Min humidity........29-35 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Northwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 1200, then
southeast.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers in the
evening, then chance of showers after midnight. Lows in the upper
40s. Northwest winds around 10 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the upper 60s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 40s.
Highs in the lower 70s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s.
.FRIDAY...Partly cloudy. Highs in the upper 60s.
$$
WYZ276-262245-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......3 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......1 percent drier.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......9000-10000 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......Unchanged.
Max humidity........46-52 percent.
24 hr trend......3 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 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.......2800-4800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......5 degrees cooler.
Min humidity........28-34 percent.
24 hr trend......6 percent wetter.
20-foot winds.......West winds 10 to 15 mph. Gusts up to 20 mph
until 1200, then 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......4 degrees cooler.
Max humidity........51-57 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Moderate.
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.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....63-68.
24 hr trend......7 degrees cooler.
Min humidity........37-43 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North around 10 mph until 1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 1200, then
southeast.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers after midnight.
Lows in the mid 40s. Winds generally less than 10 mph.
.MONDAY...Mostly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 60s.
Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 40s.
Highs in the upper 60s. Northwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 40s. Highs around 70.
.FRIDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the lower 60s.
$$
WYZ287-262245-
Owl Creek Mountains-
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......2 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......2 percent wetter.
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.....Southwest around 20 mph.
Mixing Height.......5200-7200 ft agl.
Smoke dispersal.....Good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......Unchanged.
Max humidity........41-47 percent.
24 hr trend......13 percent drier.
Humidity recovery...Moderate.
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.....West 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....67-72.
24 hr trend......1 degree warmer.
Min humidity........25-31 percent.
24 hr trend......4 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 around 15 mph until 1200, then around
25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......3 degrees cooler.
Max humidity........48-54 percent.
24 hr trend......8 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......West 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.....West 10 to 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......3 degrees cooler.
Min humidity........31-37 percent.
24 hr trend......6 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.....East 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 10 to 15 mph.
Mixing Height.......400-2200 ft agl until 1200, then 3800-5800 ft
agl.
Smoke dispersal.....Poor until 1200, then fair to good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers after midnight.
Lows in the upper 40s. Winds generally less than 10 mph.
.MONDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the lower 60s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 40s.
Highs in the mid 60s. West winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 40s. Highs in the upper
60s.
.FRIDAY...Partly cloudy. Highs in the lower 60s.
$$
WYZ286-262245-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......1 degree warmer.
Min humidity........26-32 percent.
24 hr trend......2 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.......6800-8000 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....41-46.
24 hr trend......2 degrees warmer.
Max humidity........55-61 percent.
24 hr trend......12 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 15 to 20 mph with gusts to around 45
mph until 0300, then around 10 mph with gusts
to around 40 mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 20 to 25 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....58-63.
24 hr trend......6 degrees cooler.
Min humidity........33-39 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Breezy. West winds 10 to 15 mph with gusts to
around 35 mph until 1200, then 20 to 25 mph
with gusts to around 45 mph.
Ridge top winds.....West 20 to 25 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then around
35 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6000-7800 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the morning. Chance of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....38-43.
24 hr trend......1 degree cooler.
Max humidity........59-65 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph with gusts to around 35
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2400, then southwest
around 10 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers in the morning. Slight chance
of showers in the afternoon. Slight chance of
thunderstorms late in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......1 degree warmer.
Min humidity........42-48 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 15 mph. Gusts up to 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 around
20 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5200-7200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then chance of showers after
midnight. Lows in the lower 40s. Winds generally less than
10 mph.
.MONDAY...Partly cloudy. Showers, slight chance of thunderstorms
and snow showers. Lows in the mid 30s. Highs in the mid 50s.
Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 30s.
Highs in the upper 50s. West winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the
upper 50s.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then chance of showers and snow showers in the afternoon. Highs
in the mid 50s.
$$
WYZ140-262245-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......Unchanged.
Min humidity........30-36 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph.
Mixing Height.......6600-7200 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....36-41.
24 hr trend......3 degrees warmer.
Max humidity........75-81 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......2200-4200 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....55-60.
24 hr trend......11 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then around
30 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4400-6200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the morning. Chance of showers 20 percent.
Chance of thunder...0 percent.
Min temperature.....36-41.
24 hr trend......Unchanged.
Max humidity........71-77 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 30 mph until 2100, then
downslope/downvalley 4-7 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 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
morning. Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....59-64.
24 hr trend......5 degrees warmer.
Min humidity........40-46 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph with gusts to around 30
mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then chance of showers and slight
chance of thunderstorms after midnight. Lows in the upper 30s.
Winds generally less than 10 mph.
.MONDAY...Partly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the lower 30s. Highs in the mid 50s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 30s.
Highs in the upper 50s. Winds generally less than 10 mph.
.THURSDAY...Partly cloudy. Lows in the mid 30s. Highs in the
upper 50s.
.FRIDAY...Partly cloudy. Slight chance of showers in the morning,
then slight chance of showers and thunderstorms in the afternoon.
Highs in the lower 50s.
$$
WYZ415-262245-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....63-68.
24 hr trend......1 degree cooler.
Min humidity........30-36 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......7200-8000 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....37-42.
24 hr trend......2 degrees warmer.
Max humidity........72-78 percent.
24 hr trend......11 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 0300, 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.......2600-4600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....56-61.
24 hr trend......7 degrees cooler.
Min humidity........43-49 percent.
24 hr trend......10 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then around
20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
30 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....37-42.
24 hr trend......Unchanged.
Max humidity........76-82 percent.
24 hr trend......5 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......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.......1800-3800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
afternoon. Slight chance of thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...0 percent.
Max temperature.....58-63.
24 hr trend......3 degrees warmer.
Min humidity........40-46 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph with gusts to around 30
mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then showers likely and slight
chance of thunderstorms after midnight. Lows around 40. Winds
generally less than 10 mph.
.MONDAY...Partly cloudy. Showers likely and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the mid 50s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 30s.
Highs in the upper 50s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 30s. Highs in the upper
50s.
.FRIDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the mid 50s.
$$
WYZ416-262245-
West Wind River Mountains/East Zone Bridger Teton NF-
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....60-65.
24 hr trend......Unchanged.
Min humidity........30-36 percent.
24 hr trend......4 percent drier.
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.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......6800-7600 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....37-42.
24 hr trend......4 degrees warmer.
Max humidity........65-71 percent.
24 hr trend......21 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
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.......2600-4600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....55-60.
24 hr trend......3 degrees cooler.
Min humidity........40-46 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900. Winds west
around 20 mph after 1500. Gusts up to 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
30 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....38-43.
24 hr trend......1 degree warmer.
Max humidity........68-74 percent.
24 hr trend......7 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph with gusts to around
30 mph until 2100, then downslope/downvalley
4-7 mph until 0300, then south around 10 mph
with gusts to around 15 mph.
Ridge top winds.....Southwest around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming 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...20 percent.
Max temperature.....56-61.
24 hr trend......1 degree warmer.
Min humidity........41-47 percent.
24 hr trend......2 percent wetter.
20-foot winds.......South winds 10 to 15 mph with gusts to around
30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....South around 15 mph until 1200, then southwest
around 25 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then showers likely and
slight chance of thunderstorms after midnight. Lows in the upper
30s. Winds generally less than 10 mph.
.MONDAY...Mostly cloudy. Showers likely, slight chance of
thunderstorms and snow showers. Lows in the mid 30s. Highs in the
lower 50s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 30s.
Highs in the mid 50s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 30s. Highs in the mid
50s.
.FRIDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the lower 50s.
$$
WYZ288-262245-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......1 degree warmer.
Min humidity........28-34 percent.
24 hr trend......4 percent drier.
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.......6800-7800 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....42-47.
24 hr trend......4 degrees warmer.
Max humidity........53-59 percent.
24 hr trend......24 percent drier.
Humidity recovery...Moderate.
20-foot winds.......West winds 10 to 15 mph with gusts to around 40
mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....60-65.
24 hr trend......1 degree cooler.
Min humidity........35-41 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph until 1200, then
west around 20 mph. Gusts up to 40 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 20 mph until 1200, then around
30 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....42-47.
24 hr trend......Unchanged.
Max humidity........58-64 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 35
mph until 2400, then 20 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming 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.....61-66.
24 hr trend......Unchanged.
Min humidity........37-43 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Southwest winds around 10 mph until 1200, then
around 20 mph. Gusts up to 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
25 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then showers likely after
midnight. Lows in the lower 40s. Southwest winds around 10 mph.
.MONDAY...Mostly cloudy with showers likely, slight chance of
thunderstorms and snow showers. Lows in the upper 30s. Highs in
the mid 50s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 30s.
Highs in the upper 50s. West winds around 10 mph.
.THURSDAY...Mostly clear. Lows around 40. Highs around 60.
.FRIDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the upper 50s.
$$
WYZ414-262245-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......1 degree warmer.
Min humidity........28-34 percent.
24 hr trend......1 percent drier.
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.......7600-8400 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....36-41.
24 hr trend......2 degrees warmer.
Max humidity........72-78 percent.
24 hr trend......9 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 30 mph until 2400, 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.......2600-4600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....58-63.
24 hr trend......4 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph with gusts to around 35
mph.
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
25 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 5600-7600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....40-45.
24 hr trend......3 degrees warmer.
Max humidity........69-75 percent.
24 hr trend......1 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
southeast around 10 mph. Gusts up to 30 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....59-64.
24 hr trend......1 degree warmer.
Min humidity........35-41 percent.
24 hr trend......1 percent drier.
20-foot winds.......South winds 10 to 15 mph until 1500, then
southwest. Gusts up to 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.......2000-4000 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then showers likely and
slight chance of thunderstorms after midnight. Lows in the lower
40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with showers likely, slight chance of
thunderstorms and snow showers. Lows in the upper 30s. Highs in
the upper 50s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 30s.
Highs in the upper 50s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs around 60.
.FRIDAY...Partly cloudy. Highs in the mid 50s.
$$
WYZ278-262245-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....64-69.
24 hr trend......2 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......3 percent drier.
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.......8800-9600 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....38-43.
24 hr trend......2 degrees cooler.
Max humidity........65-71 percent.
24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 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.....West 10 to 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....62-67.
24 hr trend......1 degree cooler.
Min humidity........29-35 percent.
24 hr trend......5 percent wetter.
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.....South around 10 mph until 1200, then southwest
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 25 mph.
Mixing Height.......600-2600 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....40-45.
24 hr trend......2 degrees warmer.
Max humidity........65-71 percent.
24 hr trend......Unchanged.
Humidity recovery...Good.
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.....West around 10 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......3000-5000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly 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.....62-67.
24 hr trend......Unchanged.
Min humidity........31-37 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 15 mph with gusts to around 30
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 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.SUNDAY THROUGH MONDAY...Mostly cloudy with chance of showers and
slight chance of thunderstorms. Lows 36 to 41. Highs in the lower
60s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the mid 30s.
Highs 61 to 66. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
60s.
.FRIDAY...Partly cloudy. Highs in the lower 60s.
$$
WYZ277-262245-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......3 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds around 20 mph with gusts to around
30 mph.
Ridge top winds.....West around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 25 mph.
Mixing Height.......8600-9800 ft agl.
Smoke dispersal.....Excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....39-44.
24 hr trend......2 degrees cooler.
Max humidity........61-67 percent.
24 hr trend......8 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 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.....Southwest 10 to 15 mph.
Mixing Height.......3200-5200 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....64-69.
24 hr trend......1 degree cooler.
Min humidity........26-32 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 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.....Southwest around 10 mph until 1200, then around
25 mph.
Mixing Height.......800-2800 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor until 1200, then very good to excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of thunder...0 percent.
Min temperature.....42-47.
24 hr trend......3 degrees warmer.
Max humidity........58-64 percent.
24 hr trend......Unchanged.
Humidity recovery...Good.
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 until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......2800-4800 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy.
Chance of thunder...0 percent.
Max temperature.....63-68.
24 hr trend......1 degree cooler.
Min humidity........27-33 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then around
25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.SUNDAY THROUGH MONDAY...Mostly cloudy with chance of showers and
slight chance of thunderstorms. Lows 38 to 43. Highs in the lower
60s. Winds generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Lows in the upper 30s.
Highs 60 to 65. West winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
60s.
.FRIDAY...Partly cloudy. Highs in the mid 60s.
$$
WYZ279-262245-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......Unchanged.
Min humidity........30-36 percent.
24 hr trend......2 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.Zero percent.
Transport winds.....West around 20 mph.
Mixing Height.......7800-9800 ft agl.
Smoke dispersal.....Very good to excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......3 degrees cooler.
Max humidity........68-74 percent.
24 hr trend......9 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 25
mph until 2400, then 15 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....66-71.
24 hr trend......3 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......3 degrees warmer.
Max humidity........61-67 percent.
24 hr trend......4 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
south around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy. Slight chance of showers in the
afternoon. Slight chance of thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......1 degree cooler.
Min humidity........33-39 percent.
24 hr trend......4 percent wetter.
20-foot winds.......South winds 10 to 15 mph. Gusts up to 20 mph
until 1200, then 30 mph.
Ridge top winds.....South 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms in the evening, then slight chance of showers after
midnight. Lows in the mid 40s. South winds around 10 mph.
.MONDAY...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.
.TUESDAY...Partly cloudy. Slight chance of showers. Lows around
40. Highs in the lower 60s. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows around 40. Highs in the mid 60s.
West winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the
upper 60s.
.FRIDAY...Partly cloudy. Highs in the upper 60s.
$$
WYZ289-262245-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Partly cloudy. Slight chance of showers early
in the evening. Chance of showers 20 percent.
Chance of thunder...0 percent.
Max temperature.....65-70.
24 hr trend......1 degree warmer.
Min humidity........30-36 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Southwest winds around 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......6200-7800 ft agl.
Smoke dispersal.....Very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......Unchanged.
Max humidity........51-57 percent.
24 hr trend......28 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......3 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......6 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 35 mph until 1500, then 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.......800-2800 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor until 1200, then excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree warmer.
Max humidity........55-61 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 30 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.......3000-5000 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.SUNDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......Unchanged.
Min humidity........23-29 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest 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.......2000-4000 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Mostly cloudy. Chance of showers in the evening,
then slight chance of showers after midnight. Lows in the upper
40s. Southwest winds around 10 mph.
.MONDAY...Mostly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the mid 60s.
Northwest winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers. Lows in
the lower 40s. Highs in the mid 60s. Winds generally less than
10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 40s. Highs in the
upper 60s. West winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 40s. Highs in the upper
60s.
.FRIDAY...Partly cloudy. Highs in the upper 60s.
$$
WYZ300-262245-
Casper Mountain-
236 PM MDT Fri Sep 25 2026
.THIS AFTERNOON...
Sky/weather.........Mostly cloudy. Chance of showers early in the
evening. Slight chance of thunderstorms through
the day. Slight chance of showers early in the
evening. Chance of precipitation 40 percent.
Chance of thunder...20 percent.
Max temperature.....63-68.
24 hr trend......1 degree cooler.
Min humidity........45-51 percent.
24 hr trend......12 percent wetter.
20-foot winds.......Southwest winds around 10 mph with higher
gusts.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.5 percent.
Transport winds.....Southwest around 20 mph.
Mixing Height.......4600-5600 ft agl.
Smoke dispersal.....Good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....48-53.
24 hr trend......1 degree cooler.
Max humidity........44-50 percent.
24 hr trend......39 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 30 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1200-3200 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......7 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......25 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 around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor until 1200, then very good to excellent.
.SATURDAY NIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......1 degree warmer.
Max humidity........48-54 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph until 0300, then south with gusts
to around 15 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......2600-4600 ft agl until 2400, then 600 ft agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.SUNDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......Unchanged.
Min humidity........27-33 percent.
24 hr trend......2 percent wetter.
20-foot winds.......South winds around 10 mph until 1500, then
southwest. Gusts up to 25 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South 15 to 20 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.SUNDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Lows around 50. South
winds around 10 mph.
.MONDAY...Cooler. Mostly cloudy with showers likely and slight
chance of thunderstorms. Lows in the lower 40s. Highs in the
lower 60s. Winds generally less than 10 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs around 60. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 40s. Highs in the
lower 60s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 40s. Highs in the mid
60s.
.FRIDAY...Partly cloudy. Highs in the mid 60s.
$$