Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
877
FNUS55 KRIW 111005
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
405 AM MDT Mon Aug 11 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Today will be a mainly dry and warmer day than yesterday. Relative
humidity will remain above critical levels. Wind should remain
light to moderate. Mixing and smoke dispersal will be generally
good to very good in the afternoon. Isolated thunderstorms are
possible tomorrow afternoon in northern Zone 140.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Today will be a mainly dry and warmer day than yesterday. A gusty
breeze will occur in the zones north of the Owl Creek and Bridger
Ranges at times. However, relative humidity should remain above
critical levels. Mixing and smoke dispersal will be generally
good to excellent in the afternoon. Isolated thunderstorms are
possible tomorrow afternoon in northern Zone 286.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Today will be a mainly dry and warmer day than yesterday. Isolated
afternoon showers and thunderstorms will be possible this afternoon
in Zones 281, 285 and northern Zone 280. A gusty breeze will occur
in Zone 281. Wind should remain light to moderate elsewhere. Relative
humidity may fall to under 15 percent at times in the southern zones
this afternoon. Mixing and smoke dispersal will be generally
good to excellent in the afternoon.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-121215-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......6 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West around 10 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 8400-10400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....52-57.
24 hr trend......1 degree warmer.
Max humidity........70-76 percent.
24 hr trend......6 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....84-89.
24 hr trend......4 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then west.
Mixing Height.......1800-3800 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows around 60. Highs in the lower
90s. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 88 to 93.
Southwest winds around 10 mph.
.SATURDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 80s.
.SUNDAY...Mostly sunny. Highs in the upper 80s.
$$
WYZ283-121215-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......5 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......1 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.....West around 10 mph until 1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......1 degree warmer.
Max humidity........60-66 percent.
24 hr trend......11 percent wetter.
Humidity recovery...Good.
20-foot winds.......Northeast winds around 10 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 2400, then east.
Mixing Height.......3800-5800 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....84-89.
24 hr trend......5 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200. Winds
south around 10 mph after 1500. Gusts up to 15
mph.
Ridge top winds.....South around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest
winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 60. Highs in the lower 90s. West winds
around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 87 to 92.
Southwest winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs in the
upper 80s.
$$
WYZ285-121215-
South Bighorn Mountains-
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....74-79.
24 hr trend......5 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......Unchanged.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......Unchanged.
Max humidity........65-71 percent.
24 hr trend......15 percent wetter.
Humidity recovery...Good.
20-foot winds.......Northeast winds 10 to 15 mph until 0300, then
southeast. Gusts up to 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 2400, then east.
Mixing Height.......2800-4800 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......4 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. South winds
around 10 mph.
.WEDNESDAY...Mostly clear. Lows around 60. Highs in the mid 80s.
West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 80 to 85.
Southwest winds around 10 mph.
.SATURDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
.SUNDAY...Mostly sunny. Highs around 80.
$$
WYZ281-121215-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....79-84.
24 hr trend......6 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northwest 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West around 10 mph until 1200, then north
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 1200, then north
around 20 mph.
Mixing Height.......3200-5200 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....53-58.
24 hr trend......Unchanged.
Max humidity........70-76 percent.
24 hr trend......10 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph with gusts to around
30 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 2400, then 600-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......4 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, 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.....Southwest 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows around 60. Winds generally
less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs in the
mid 90s. West winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows around 60. Highs 87 to 92.
Northwest winds around 10 mph.
.SATURDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
.SUNDAY...Mostly sunny. Highs in the upper 80s.
$$
WYZ282-121215-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......5 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then north
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then north
around 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.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......1 degree warmer.
Max humidity........64-70 percent.
24 hr trend......11 percent wetter.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....North around 15 mph until 2400, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then west.
Mixing Height.......3800-5800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......5 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 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 NIGHT...Mostly clear. Lows in the upper 50s. Winds
generally less than 10 mph.
.WEDNESDAY...Warmer. Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the mid 90s.
Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs 89 to 94.
West winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs in the
lower 90s.
$$
WYZ275-121215-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms early in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....75-80.
24 hr trend......4 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....Southwest around 10 mph until 1200, then
northwest around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then north
around 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.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......Unchanged.
Max humidity........63-69 percent.
24 hr trend......10 percent wetter.
Humidity recovery...Good.
20-foot winds.......North winds 10 to 15 mph with gusts to around
30 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 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.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......4 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast 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.......1400-3400 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows around 60. Winds generally
less than 10 mph.
.WEDNESDAY...Warmer. Mostly clear. Lows around 60. Highs in the
mid 90s. Southwest winds around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows 56 to 61. Highs 87 to 92. West
winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs around
90.
$$
WYZ276-121215-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......4 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast 10 to 15 mph with gusts to around 30
mph.
Ridge top winds.....West around 10 mph until 1200, then northeast
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 10 mph until 1200, then north
around 20 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......Unchanged.
Max humidity........63-69 percent.
24 hr trend......11 percent wetter.
Humidity recovery...Good.
20-foot winds.......North winds 10 to 15 mph with gusts to around
30 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....North around 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then west.
Mixing Height.......2800-4800 ft agl until 2400, then 600-1200 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
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.....80-85.
24 hr trend......4 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. Southwest
winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 60. Highs in the upper 80s. West winds
around 10 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows 54 to 59. Highs 82 to 87.
Northwest winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs in the mid
80s.
$$
WYZ287-121215-
Owl Creek Mountains-
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......5 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast 10 to 15 mph with gusts to around 25
mph.
Ridge top winds.....West around 10 mph until 1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....51-56.
24 hr trend......1 degree warmer.
Max humidity........56-62 percent.
24 hr trend......9 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......North winds 10 to 15 mph until 2400, then
northwest until 0300, then downslope/downvalley
4-7 mph. Gusts up to 25 mph.
Ridge top winds.....North around 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then west.
Mixing Height.......3200-5200 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.TUESDAY...
Sky/weather.........Sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....South around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph.
Mixing Height.......1400-3400 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 NIGHT...Mostly clear. Lows in the upper 50s. Southwest
winds around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the upper 80s.
West winds around 10 mph.
.THURSDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 50s. Highs in the mid
80s. West winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Southwest winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 50s. Highs in the
lower 80s.
$$
WYZ286-121215-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......5 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......1 degree warmer.
Max humidity........71-77 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast around 15 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 2400, then south.
Mixing Height.......2200-4200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
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...20 percent.
Max temperature.....73-78.
24 hr trend......3 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 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.......2400-4400 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. West winds
around 10 mph.
.WEDNESDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
West winds around 15 mph.
.THURSDAY THROUGH FRIDAY...Partly cloudy with chance of showers
and slight chance of thunderstorms. Lows around 50. Highs 71 to
76. West winds 10 to 15 mph.
.SATURDAY...Mostly clear. 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 lower 70s.
$$
WYZ140-121215-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....72-77.
24 hr trend......6 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....42-47.
24 hr trend......2 degrees warmer.
Max humidity........73-79 percent.
24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph and gusty until
2100, then downslope/downvalley 4-7 mph.
Ridge top winds.....North around 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 2400, then east.
Mixing Height.......3200-5200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......3 degrees warmer.
Min humidity........26-32 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph with gusts to around 25
mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good to
excellent.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the upper 70s.
Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs in the mid
70s.
$$
WYZ415-121215-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......6 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......2 degrees warmer.
Max humidity........65-71 percent.
24 hr trend......2 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds around 10 mph and gusty until
2100, then downslope/downvalley 4-7 mph.
Ridge top winds.....North around 10 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 2400, then east.
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 sunny.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......3 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......3 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.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......2200-4200 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the upper 70s.
Southwest winds around 10 mph.
.THURSDAY...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.
.FRIDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs in the mid
70s.
$$
WYZ416-121215-
West Wind River Mountains/East Zone Bridger Teton NF-
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......6 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest 10 to 15 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6600-8600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......2 degrees warmer.
Max humidity........60-66 percent.
24 hr trend......4 percent drier.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph until 2400, then
northeast until 0300, then downslope/downvalley
4-7 mph. Gusts up to 20 mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......3200-5200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....71-76.
24 hr trend......2 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph. Gusts up to 20 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......2000-4000 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 clear. Lows in the upper 40s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s. West
winds around 10 mph.
.THURSDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the
lower 70s. West winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and thunderstorms.
Lows in the mid 40s. Highs in the lower 70s. West winds around
10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the mid 40s. Highs in the
lower 70s.
$$
WYZ288-121215-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......5 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest around 10 mph until 1200, then north.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....45-50.
24 hr trend......1 degree warmer.
Max humidity........57-63 percent.
24 hr trend......2 percent wetter.
Humidity recovery...Good.
20-foot winds.......Northeast winds around 10 mph until 2400, then
north until 0300, then downslope/downvalley 4-7
mph. Gusts up to 20 mph.
Ridge top winds.....Northeast around 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......3000-5000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......3 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest 10 to 15 mph with gusts to around 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.......1800-3800 ft agl until 1200, then 7000-9000 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds
around 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 70s. West
winds around 15 mph.
.THURSDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the
upper 70s. West winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the mid 70s. West winds around
10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows around 50. Highs in the mid 70s.
$$
WYZ414-121215-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....74-79.
24 hr trend......6 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest 10 to 15 mph with gusts to around 25
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 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......2 degrees warmer.
Max humidity........67-73 percent.
24 hr trend......2 percent drier.
Humidity recovery...Good.
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 around 15 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 2400, then southeast.
Mixing Height.......3600-5600 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......3 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......4 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.....Southeast around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......2200-4200 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs around 80. West winds
around 10 mph.
.THURSDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows around 50. Highs in the upper 70s.
West winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and thunderstorms.
Lows in the upper 40s. Highs in the mid 70s. Southwest winds
around 10 mph.
.SATURDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the mid 70s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
$$
WYZ277>279-121215-
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
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......6 degrees warmer.
Min humidity........16-22 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....44-49.
24 hr trend......2 degrees warmer.
Max humidity........56-62 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Moderate.
20-foot winds.......North winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......4400-6400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......3 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph with higher gusts.
Ridge top winds.....East around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then west.
Mixing Height.......1800-3800 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 80s. West winds around 10 mph.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 80s. West
winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and thunderstorms.
Lows in the upper 40s. Highs in the lower 80s. Winds generally
less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear with slight chance of
showers and thunderstorms. Lows in the upper 40s. Highs in the
lower 80s.
$$
WYZ289-121215-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....76-81.
24 hr trend......5 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2800-4800 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......1 degree warmer.
Max humidity........59-65 percent.
24 hr trend......9 percent wetter.
Humidity recovery...Good.
20-foot winds.......Northeast winds around 10 mph and gusty.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......3800-5800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....79-84.
24 hr trend......4 degrees warmer.
Min humidity........13-19 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 1200, then west.
Mixing Height.......1800-3800 ft agl until 1200, then 7800-9800 ft
agl.
Smoke dispersal.....Poor until 1200, then good to very good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Winds
generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 80s. West winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 80s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 50s. Highs in the mid 80s.
Southwest winds around 10 mph.
.SATURDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s.
.SUNDAY...Mostly sunny. Highs in the lower 80s.
$$
WYZ300-121215-
Casper Mountain-
405 AM MDT Mon Aug 11 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......7 degrees warmer.
Min humidity........22-28 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
northwest around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West around 10 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....49-54.
24 hr trend......1 degree warmer.
Max humidity........64-70 percent.
24 hr trend......7 percent drier.
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.....Northeast 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......3600-5600 ft agl until 2400, then 200-600 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.TUESDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......3 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....South around 10 mph until 1200, then southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......2000-4000 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
mid 80s. Southwest winds around 10 mph.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 80s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy with chance of showers and slight chance
of thunderstorms. Lows in the mid 50s. Highs in the lower 80s.
South winds around 10 mph.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s.
.SUNDAY...Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Highs around 80.
$$