Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
192
FNUS55 KRIW 050859
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
259 AM MDT Sun Oct 5 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Another round of wetting rainfall and mountain snow returns today,
with additional snow accumulation of 3 to 6 inches. Temperatures
will struggle to get out of the 40s. Winds will be lighter than
yesterday, turning more from the northwest. Temperatures again
fall below freezing tonight.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Another round of wetting rainfall and mountain snow returns today,
with additional snow accumulation of 3 to 6 inches. Temperatures
will struggle to get out of the 40s. Winds will be lighter than
yesterday, turning more from the northwest. Freezing temperatures
are possible at all lower elevations tonight, especially for the
Cody Foothills.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Another round of wetting rainfall and mountain snow returns today.
Temperatures will struggle to get out of the 40s. Winds will be
lighter than yesterday, turning more from the northwest during the
afternoon. Freezing temperatures are possible at all lower
elevations tonight, especially across the Green Mountains and
across Sweetwater County.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-061100-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
259 AM MDT Sun Oct 5 2025
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...
.TODAY...
Sky/weather.........Mostly cloudy. Rain likely through the day.
Isolated thunderstorms in the afternoon. Chance
of precipitation 70 percent.
Chance of thunder...10 percent.
Max temperature.....43-48.
24 hr trend......17 degrees cooler.
Min humidity........74-80 percent.
24 hr trend......20 percent wetter.
20-foot winds.......Northwest winds 10 to 15 mph until 1200, then
northeast. Gusts up to 30 mph.
Ridge top winds.....Northwest around 20 mph until 1200, then
northeast.
Chc of wetting rain.40 percent until 1200, then 30 percent.
Transport winds.....North around 20 mph until 1200, then northeast.
Mixing Height.......1400-2800 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Cloudy. Rain through the night. Snow after
midnight. No snow accumulation. Chance of
precipitation 90 percent.
Chance of thunder...0 percent.
Min temperature.....34-39.
24 hr trend......3 degrees cooler.
Max humidity........88-94 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 15 to 20 mph with gusts to
around 35 mph.
Ridge top winds.....Northeast around 20 mph.
Chc of wetting rain.50 percent until 2400, then 65 percent.
Transport winds.....Northeast around 20 mph.
Mixing Height.......1200-2200 ft agl.
Smoke dispersal.....Poor to fair.
.MONDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of snow early in the morning. Chance of
rain early in the morning, then slight chance
of rain late in the morning. Chance of
precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....48-53.
24 hr trend......6 degrees warmer.
Min humidity........57-63 percent.
24 hr trend......19 percent drier.
20-foot winds.......Northeast winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then west
around 10 mph until 1500, then upslope/upvalley
5-9 mph. Gusts up to 20 mph.
Ridge top winds.....Northeast around 15 mph until 1200, then west.
Chc of wetting rain.10 percent until 1200, then zero percent.
Transport winds.....Northeast around 15 mph until 1200, then
northwest.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the lower 30s. Winds
generally less than 10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs in the upper 50s.
South winds around 10 mph.
.WEDNESDAY...Clear. Lows in the upper 30s. Highs in the upper
60s. Southwest winds around 15 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the
upper 60s. Southwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear with slight chance of
rain. Lows in the mid 40s. Highs 69 to 74.
$$
WYZ283-061100-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
259 AM MDT Sun Oct 5 2025
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...
.TODAY...
Sky/weather.........Cloudy. Rain early in the morning, then rain
likely in the morning. Rain and isolated
thunderstorms in the afternoon. Chance of
precipitation near 100 percent.
Chance of thunder...10 percent.
Max temperature.....45-50.
24 hr trend......15 degrees cooler.
Min humidity........70-76 percent.
24 hr trend......18 percent wetter.
20-foot winds.......Northwest winds around 10 mph until 0900, then
northeast. Gusts up to 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.30 percent until 1200, then 70 percent.
Transport winds.....North around 15 mph until 1200, then east.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Cloudy. Rain and snow. Snow accumulation up to
1 inch. Chance of precipitation near 100
percent.
Chance of thunder...0 percent.
Min temperature.....31-36.
24 hr trend......4 degrees cooler.
Max humidity........90-96 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Northeast 15 to 20 mph.
Chc of wetting rain.85 percent until 2400, then 45 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing Height.......1200-2400 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of rain and slight chance of snow early
in the morning, then slight chance of rain in
the morning. Chance of precipitation 50
percent.
Chance of thunder...0 percent.
Max temperature.....46-51.
24 hr trend......3 degrees warmer.
Min humidity........56-62 percent.
24 hr trend......18 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the lower 30s. Winds
generally less than 10 mph.
.TUESDAY...Mostly clear. Lows in the mid 30s. Highs in the upper
50s. Winds generally less than 10 mph.
.WEDNESDAY...Clear. Lows in the upper 30s. Highs in the mid 60s.
Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
60s. Winds generally less than 10 mph.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the lower
40s. Highs in the upper 60s.
.SATURDAY...Partly cloudy with slight chance of rain. Highs in
the upper 60s.
$$
WYZ285-061100-
South Bighorn Mountains-
259 AM MDT Sun Oct 5 2025
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Cloudy. Rain and snow through the day. Isolated
thunderstorms in the afternoon. Snow
accumulation up to 2 inches. Chance of
precipitation near 100 percent.
Chance of thunder...10 percent.
Max temperature.....39-44.
24 hr trend......14 degrees cooler.
Min humidity........71-77 percent.
24 hr trend......16 percent wetter.
20-foot winds.......Northwest winds 10 to 15 mph until 1200, then
northeast. Gusts up to 30 mph.
Ridge top winds.....Northwest around 15 mph until 1200, then
northeast.
Chc of wetting rain.75 percent until 1200, then 85 percent.
Transport winds.....Northwest around 15 mph until 1200, then
northeast.
Mixing Height.......400-2200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Snow and rain until early morning, then
snow and rain likely after midnight. Chance of
snow and rain early in the morning. Snow
accumulation up to 2 inches. Chance of
precipitation near 100 percent.
Chance of thunder...0 percent.
Min temperature.....30-35.
24 hr trend......3 degrees cooler.
Max humidity........84-90 percent.
24 hr trend......9 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Northeast 15 to 20 mph.
Chc of wetting rain.65 percent until 2400, then 45 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing Height.......600-1600 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of snow and rain early in the morning,
then slight chance of rain and snow late in the
morning. Chance of precipitation 50 percent.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......3 degrees warmer.
Min humidity........60-66 percent.
24 hr trend......14 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph until 1500, then upslope/upvalley
5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.10 percent until 1200, then zero percent.
Transport winds.....Northeast around 10 mph until 1200, then
northwest.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the lower 30s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 37 to 42. Highs 54 to
59. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the
lower 60s. South winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the mid
40s. Highs in the lower 60s.
.SATURDAY...Mostly sunny. Highs in the mid 60s.
$$
WYZ281-061100-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
259 AM MDT Sun Oct 5 2025
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...
.TODAY...
Sky/weather.........Cloudy. Rain in the morning. Isolated
thunderstorms in the late morning and
afternoon. Rain likely in the afternoon. Chance
of precipitation near 100 percent.
Chance of thunder...10 percent.
Max temperature.....41-46.
24 hr trend......14 degrees cooler.
Min humidity........71-77 percent.
24 hr trend......10 percent wetter.
20-foot winds.......North winds 15 to 20 mph with gusts to around
30 mph.
Ridge top winds.....North around 20 mph.
Chc of wetting rain.60 percent until 1200, then 35 percent.
Transport winds.....North around 20 mph.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Cloudy. Rain likely until early morning, then
chance of rain early in the morning. Chance of
rain 70 percent.
Chance of thunder...0 percent.
Min temperature.....33-38.
24 hr trend......3 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 25
mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.35 percent until 2400, then 20 percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing Height.......1200-2400 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy. Chance of rain early in the
morning. Slight chance of rain late in the
morning. Chance of rain 50 percent.
Chance of thunder...0 percent.
Max temperature.....49-54.
24 hr trend......8 degrees warmer.
Min humidity........52-58 percent.
24 hr trend......21 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph until 1500, then
upslope/upvalley 5-9 mph. Gusts up to 20 mph.
Ridge top winds.....East around 10 mph until 1200, then south.
Chc of wetting rain.Less than 5 percent.
Transport winds.....East around 10 mph until 1200, then south.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the lower 30s. Winds generally
less than 10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs in the lower 60s.
South winds around 10 mph.
.WEDNESDAY...Clear. Lows around 40. Highs around 70. Southwest
winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the
lower 70s. Northwest winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Lows in the upper 40s.
Highs 71 to 76.
$$
WYZ282-061100-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
259 AM MDT Sun Oct 5 2025
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...
.TODAY...
Sky/weather.........Cloudy. Rain through the day. Isolated
thunderstorms in the afternoon. Chance of
precipitation near 100 percent.
Chance of thunder...10 percent.
Max temperature.....40-45.
24 hr trend......13 degrees cooler.
Min humidity........70-76 percent.
24 hr trend......5 percent wetter.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 30 mph.
Ridge top winds.....Northwest around 20 mph.
Chc of wetting rain.25 percent until 1200, then 55 percent.
Transport winds.....North around 20 mph.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Cloudy. Rain in the evening, then rain likely
and chance of snow after midnight. No snow
accumulation. Chance of precipitation near 100
percent.
Chance of thunder...0 percent.
Min temperature.....32-37.
24 hr trend......2 degrees cooler.
Max humidity........84-90 percent.
24 hr trend......9 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 25 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.60 percent until 2400, then 20 percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......1200-2400 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of snow early in
the morning. Slight chance of rain early in the
morning. Chance of precipitation 20 percent.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......6 degrees warmer.
Min humidity........57-63 percent.
24 hr trend......19 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....West around 10 mph until 1200, then south.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northwest around 10 mph until 1200, then west.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the lower 30s. Winds generally
less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 35 to 40. Highs 61 to
66. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows around 40. Highs in the upper 60s.
Winds generally less than 10 mph.
.FRIDAY...Mostly clear. Lows in the mid 40s. Highs around 70.
.SATURDAY...Mostly sunny. Slight chance of rain in the afternoon.
Highs in the lower 70s.
$$
WYZ275-061100-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
259 AM MDT Sun Oct 5 2025
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...
.TODAY...
Sky/weather.........Cloudy. Rain in the morning, then rain likely
in the afternoon. Chance of rain near 100
percent.
Chance of thunder...0 percent.
Max temperature.....40-45.
24 hr trend......11 degrees cooler.
Min humidity........64-70 percent.
24 hr trend......3 percent drier.
20-foot winds.......Northwest winds around 20 mph with gusts to
around 35 mph.
Ridge top winds.....Northwest around 25 mph.
Chc of wetting rain.25 percent until 1200, then 35 percent.
Transport winds.....North around 25 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Rain in the evening. Snow likely
through the night. Rain likely after midnight.
No snow accumulation. Chance of precipitation
near 100 percent.
Chance of thunder...0 percent.
Min temperature.....31-36.
24 hr trend......3 degrees cooler.
Max humidity........82-88 percent.
24 hr trend......12 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 30 mph until 0300, then
downslope/downvalley 4-7 mph.
Ridge top winds.....North around 20 mph until 2400, then northwest
around 10 mph.
Chc of wetting rain.45 percent until 2400, then 5 percent.
Transport winds.....North around 20 mph until 2400, then northwest
around 10 mph.
Mixing Height.......800-2400 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of rain early in
the morning. Chance of rain 20 percent.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......7 degrees warmer.
Min humidity........53-59 percent.
24 hr trend......18 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then south.
Mixing Height.......600-2400 ft agl until 1200, then 2600-4000 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the lower 30s. Winds generally
less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 35 to 40. Highs 61 to
66. South winds around 10 mph.
.THURSDAY...Mostly clear. Lows around 40. Highs in the upper 60s.
Winds generally less than 10 mph.
.FRIDAY...Mostly clear. Lows in the mid 40s. Highs in the upper
60s.
.SATURDAY...Mostly sunny. Slight chance of rain in the afternoon.
Highs in the lower 70s.
$$
WYZ276-061100-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
259 AM MDT Sun Oct 5 2025
...FREEZE WARNING IN EFFECT FROM 1 AM TO 10 AM MDT MONDAY...
.TODAY...
Sky/weather.........Cloudy. Rain and snow through the day. Isolated
thunderstorms in the afternoon. Snow
accumulation up to 1 inch. Chance of
precipitation near 100 percent.
Chance of thunder...10 percent.
Max temperature.....40-45.
24 hr trend......8 degrees cooler.
Min humidity........70-76 percent.
24 hr trend......3 percent drier.
20-foot winds.......North winds 15 to 20 mph with gusts to around
30 mph.
Ridge top winds.....North around 25 mph.
Chc of wetting rain.60 percent.
Transport winds.....North around 25 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Rain and snow in the evening,
then snow likely and chance of rain after
midnight. Snow accumulation up to 2 inches.
Chance of precipitation near 100 percent.
Chance of thunder...0 percent.
Min temperature.....28-33.
24 hr trend......4 degrees cooler.
Max humidity........83-89 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph with gusts to around
25 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....North around 20 mph until 2400, then northwest
around 10 mph.
Chc of wetting rain.60 percent until 2400, then 5 percent.
Transport winds.....North around 20 mph until 2400, then around 10
mph.
Mixing Height.......800-2200 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of snow early in the morning.
Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....47-52.
24 hr trend......9 degrees warmer.
Min humidity........50-56 percent.
24 hr trend......21 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....West around 10 mph until 1200, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then southeast.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the lower 30s. Winds generally
less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 37 to 42. Highs 58 to
63. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the mid
60s. West winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear with slight chance of
rain. Lows in the mid 40s. Highs 65 to 70.
$$
WYZ287-061100-
Owl Creek Mountains-
259 AM MDT Sun Oct 5 2025
.TODAY...
Sky/weather.........Cloudy. Rain and snow through the day. Isolated
thunderstorms in the afternoon. Snow
accumulation up to 3 inches. Chance of
precipitation near 100 percent.
Chance of thunder...10 percent.
Max temperature.....40-45.
24 hr trend......10 degrees cooler.
Min humidity........76-82 percent.
24 hr trend......6 percent wetter.
20-foot winds.......North winds 15 to 20 mph with gusts to around
30 mph.
Ridge top winds.....North around 20 mph.
Chc of wetting rain.35 percent until 1200, then 90 percent.
Transport winds.....North around 20 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Snow and rain until early morning, then
snow and rain likely after midnight. Chance of
snow and rain early in the morning. Snow
accumulation up to 3 inches. Chance of
precipitation near 100 percent.
Chance of thunder...0 percent.
Min temperature.....29-34.
24 hr trend......1 degree cooler.
Max humidity........88-94 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.90 percent until 2400, then 35 percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......400-1600 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy. Chance of rain early in the
morning. Slight chance of snow early in the
morning. Slight chance of rain early in the
morning. Chance of precipitation 30 percent.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......4 degrees warmer.
Min humidity........62-68 percent.
24 hr trend......17 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 10 mph.
Ridge top winds.....Northwest around 10 mph until 1200, then
southeast.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Northwest around 10 mph until 1200, then west.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the lower 30s. Winds generally
less than 10 mph.
.TUESDAY...Clear. Lows in the mid 30s. Highs in the lower 50s.
Southwest winds around 10 mph.
.WEDNESDAY...Clear. Lows around 40. Highs around 60. Southwest
winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the
lower 60s. Winds generally less than 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear with slight chance of
rain. Lows in the mid 40s. Highs in the mid 60s.
$$
WYZ286-061100-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
259 AM MDT Sun Oct 5 2025
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Cloudy. Snow through the day. Rain and isolated
thunderstorms in the afternoon. Snow
accumulation up to 5 inches. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....35-40.
24 hr trend......7 degrees cooler.
Min humidity........69-75 percent.
24 hr trend......11 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....North around 15 mph until 1200, then east.
Chc of wetting rain.45 percent until 1200, then 90 percent.
Transport winds.....North around 15 mph until 1200, then east.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Snow early in the evening, then
snow likely late in the evening. Chance of snow
late in the evening. Snow accumulation up to 4
inches. Chance of snow near 100 percent.
Chance of thunder...0 percent.
Min temperature.....22-27.
24 hr trend......5 degrees cooler.
Max humidity........82-88 percent.
24 hr trend......11 percent drier.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.65 percent until 2400, then 10 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......400-1800 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of snow early in the morning.
Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....41-46.
24 hr trend......5 degrees warmer.
Min humidity........53-59 percent.
24 hr trend......16 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....West around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the mid 20s. West winds
around 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 30 to 35. Highs 48 to
53. West winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows in the mid 30s. Highs in the mid
50s. Southwest winds around 10 mph.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the upper
30s. Highs in the mid 50s.
.SATURDAY...Partly cloudy. Slight chance of rain in the morning,
then chance of rain in the afternoon. Highs in the mid 50s.
$$
WYZ140-061100-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
259 AM MDT Sun Oct 5 2025
.TODAY...
Sky/weather.........Mostly cloudy. Snow and rain likely in the
morning, then snow, rain and isolated
thunderstorms in the afternoon. Snow
accumulation up to 3 inches. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....37-42.
24 hr trend......5 degrees cooler.
Min humidity........63-69 percent.
24 hr trend......16 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.20 percent until 1200, then 70 percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy. Chance of snow in the evening.
Slight chance of snow after midnight. Chance of
snow 50 percent.
Chance of thunder...0 percent.
Min temperature.....22-27.
24 hr trend......6 degrees cooler.
Max humidity........78-84 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.15 percent until 2400, then zero percent.
Transport winds.....Northeast around 10 mph.
Mixing Height.......400-2000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....44-49.
24 hr trend......6 degrees warmer.
Min humidity........38-44 percent.
24 hr trend......28 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northeast around 5 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 5 mph until 1200, then
northwest.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the lower 20s. Winds generally
less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 25 to 30. Highs in the
lower 50s. South winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 30s. Highs in the
upper 50s. Winds generally less than 10 mph.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the mid
30s. Highs in the upper 50s.
.SATURDAY...Partly cloudy. Slight chance of rain in the morning,
then chance of rain in the afternoon. Highs in the mid 50s.
$$
WYZ415-061100-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
259 AM MDT Sun Oct 5 2025
...FREEZE WARNING IN EFFECT UNTIL 10 AM MDT THIS MORNING...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Mostly cloudy. Snow likely and chance of rain
in the morning, then snow, rain and isolated
thunderstorms in the afternoon. Snow
accumulation up to 3 inches. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....38-43.
24 hr trend......6 degrees cooler.
Min humidity........68-74 percent.
24 hr trend......12 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.5 percent until 1200, then 55 percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......1800-3800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy. Snow, rain likely and isolated
thunderstorms in the evening, then chance of
snow and slight chance of rain after midnight.
Snow accumulation up to 2 inches. Chance of
precipitation 70 percent.
Chance of thunder...10 percent.
Min temperature.....23-28.
24 hr trend......6 degrees cooler.
Max humidity........86-92 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast around 10 mph.
Chc of wetting rain.45 percent until 2400, then zero percent.
Transport winds.....Northeast around 10 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......4 degrees warmer.
Min humidity........52-58 percent.
24 hr trend......21 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph. Gusts up to 15 mph.
Ridge top winds.....East around 10 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 1200, then north.
Mixing Height.......600-2600 ft agl until 1200, then 2800-4800 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the lower 20s. Winds generally
less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 27 to 32. Highs in the
lower 50s. South winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 30s. Highs in the
upper 50s. Winds generally less than 10 mph.
.FRIDAY...Mostly clear. Chance of rain. Lows in the mid 30s.
Highs in the upper 50s.
.SATURDAY...Partly cloudy with chance of rain. Highs in the mid
50s.
$$
WYZ416-061100-
West Wind River Mountains/East Zone Bridger Teton NF-
259 AM MDT Sun Oct 5 2025
.TODAY...
Sky/weather.........Mostly cloudy. Snow likely in the morning.
Isolated thunderstorms through the day. Snow
and rain in the afternoon. Snow accumulation up
to 3 inches. Chance of precipitation near 100
percent.
Chance of thunder...20 percent.
Max temperature.....38-43.
24 hr trend......8 degrees cooler.
Min humidity........66-72 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest around 10 mph until 1200, then south.
Chc of wetting rain.15 percent until 1200, then 70 percent.
Transport winds.....Northwest around 10 mph until 1200, then
southwest.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Snow in the evening. Isolated
thunderstorms through the night. Snow likely
after midnight. Snow accumulation of 1 to 4
inches. Chance of precipitation near 100
percent.
Chance of thunder...10 percent.
Min temperature.....22-27.
24 hr trend......6 degrees cooler.
Max humidity........86-92 percent.
24 hr trend......2 percent drier.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....East 10 to 15 mph.
Chc of wetting rain.80 percent until 2400, then 15 percent.
Transport winds.....East 10 to 15 mph.
Mixing Height.......400-2000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of snow early in
the morning. Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....39-44.
24 hr trend......Unchanged.
Min humidity........55-61 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph until 1500, then upslope/upvalley
5-9 mph. Gusts up to 15 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the lower 20s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 26 to 31. Highs 46 to
51. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 30s. Highs in the
lower 50s. South winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of rain. Lows in the mid 30s.
Highs in the mid 50s.
.SATURDAY...Partly cloudy with chance of rain. Highs in the lower
50s.
$$
WYZ288-061100-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
259 AM MDT Sun Oct 5 2025
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
.TODAY...
Sky/weather.........Cloudy. Snow likely in the morning. Rain
through the day. Snow and isolated
thunderstorms in the afternoon. Snow
accumulation up to 5 inches. Chance of
precipitation near 100 percent.
Chance of thunder...20 percent.
Max temperature.....36-41.
24 hr trend......10 degrees cooler.
Min humidity........71-77 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Southeast winds around 10 mph until 0900, then
east. Gusts up to 20 mph.
Ridge top winds.....East around 15 mph.
Chc of wetting rain.55 percent until 1200, then 80 percent.
Transport winds.....East around 15 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Rain and isolated thunderstorms
in the evening. Snow through the night. Snow
accumulation up to 5 inches. Chance of
precipitation near 100 percent.
Chance of thunder...10 percent.
Min temperature.....23-28.
24 hr trend......5 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
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 around 15 mph.
Chc of wetting rain.85 percent until 2400, then 30 percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......400-1600 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy. Slight chance of snow early in
the morning. Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....39-44.
24 hr trend......2 degrees warmer.
Min humidity........59-65 percent.
24 hr trend......13 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the mid 20s. Winds
generally less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 31 to 36. Highs 48 to
53. West winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
50s. Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of rain. Lows around 40. Highs in
the upper 50s.
.SATURDAY...Partly cloudy with chance of rain. Highs in the mid
50s.
$$
WYZ414-061100-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
259 AM MDT Sun Oct 5 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow and rain until
late afternoon. Isolated thunderstorms in the
afternoon. Rain and snow likely early in the
afternoon. Snow accumulation up to 1 inch.
Chance of precipitation 70 percent.
Chance of thunder...20 percent.
Max temperature.....38-43.
24 hr trend......5 degrees cooler.
Min humidity........70-76 percent.
24 hr trend......12 percent drier.
20-foot winds.......Northwest winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest around 10 mph.
Chc of wetting rain.5 percent until 1200, then 25 percent.
Transport winds.....Northwest around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 2800-4600 ft
agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy. Snow and rain likely in the
evening. Isolated thunderstorms through the
night. Chance of snow and slight chance of rain
after midnight. Snow accumulation up to 1 inch.
Chance of precipitation 70 percent.
Chance of thunder...20 percent.
Min temperature.....24-29.
24 hr trend......5 degrees cooler.
Max humidity........86-92 percent.
24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest around 10 mph until 2400, then east.
Chc of wetting rain.25 percent until 2400, then zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......4 degrees warmer.
Min humidity........49-55 percent.
24 hr trend......22 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....North around 10 mph until 1200, then northwest.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3000-5000 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the mid 20s. Winds generally less
than 10 mph.
.TUESDAY...Clear. Lows around 30. Highs in the lower 50s. Winds
generally less than 10 mph.
.WEDNESDAY...Clear. Lows in the lower 30s. Highs in the mid 50s.
Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the
upper 50s. Winds generally less than 10 mph.
.FRIDAY...Mostly clear. Chance of rain. Lows in the upper 30s.
Highs in the lower 60s.
.SATURDAY...Partly cloudy with chance of rain. Highs in the mid
50s.
$$
WYZ278-061100-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
259 AM MDT Sun Oct 5 2025
.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow in the morning.
Chance of rain through the day. Snow likely and
isolated thunderstorms in the afternoon. No
snow accumulation. Chance of precipitation 70
percent.
Chance of thunder...20 percent.
Max temperature.....43-48.
24 hr trend......9 degrees cooler.
Min humidity........60-66 percent.
24 hr trend......9 percent wetter.
20-foot winds.......West winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then south
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Northwest around 15 mph until 1200, then south.
Chc of wetting rain.5 percent until 1200, then 30 percent.
Transport winds.....Northwest around 15 mph until 1200, then south.
Mixing Height.......1000-3000 ft agl until 1200, then 3000-4800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy. Rain likely and snow in the
evening. Isolated thunderstorms through the
night. Chance of rain and snow after midnight.
Little or no snow accumulation. Chance of
precipitation 90 percent.
Chance of thunder...20 percent.
Min temperature.....25-30.
24 hr trend......5 degrees cooler.
Max humidity........88-94 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph until 0300, then
northeast. Gusts up to 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.40 percent until 2400, then 5 percent.
Transport winds.....East around 15 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of snow early in the morning.
Chance of snow 20 percent.
Chance of thunder...0 percent.
Max temperature.....46-51.
24 hr trend......4 degrees warmer.
Min humidity........42-48 percent.
24 hr trend......20 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3200-5200 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Clear. Lows in the mid 20s. Winds generally less
than 10 mph.
.TUESDAY...Clear. Lows in the upper 20s. Highs in the mid 50s.
Winds generally less than 10 mph.
.WEDNESDAY...Clear. Lows in the lower 30s. Highs in the lower
60s. Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 30s. Highs in the mid
60s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Slight chance of rain. Lows in the upper
30s. Highs in the mid 60s.
.SATURDAY...Partly cloudy with chance of rain. Highs in the lower
60s.
$$
WYZ277-061100-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
259 AM MDT Sun Oct 5 2025
...FREEZE WARNING IN EFFECT UNTIL 10 AM MDT THIS MORNING...
.TODAY...
Sky/weather.........Mostly cloudy. Chance of snow in the morning.
Chance of rain through the day. Isolated
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....44-49.
24 hr trend......3 degrees cooler.
Min humidity........57-63 percent.
24 hr trend......8 percent drier.
20-foot winds.......West winds around 10 mph with higher gusts.
Ridge top winds.....West around 15 mph.
Chc of wetting rain.7 percent.
Transport winds.....West around 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3000-4600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of rain until
early morning. Isolated thunderstorms until
early morning. Slight chance of snow early in
the evening. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....25-30.
24 hr trend......5 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......2 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph 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 10 to 15 mph.
Mixing Height.......1000-3000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....47-52.
24 hr trend......4 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......20 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....North around 10 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph.
Mixing Height.......600-2600 ft agl until 1200, then 3400-5400 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Winds
generally less than 10 mph.
.TUESDAY...Clear. Lows around 30. Highs in the upper 50s. Winds
generally less than 10 mph.
.WEDNESDAY...Clear. Lows in the mid 30s. Highs in the lower 60s.
Winds generally less than 10 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
60s. Winds generally less than 10 mph.
.FRIDAY...Partly cloudy. Chance of rain. Lows in the upper 30s.
Highs in the upper 60s.
.SATURDAY...Partly cloudy with chance of rain. Highs in the lower
60s.
$$
WYZ279-061100-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
259 AM MDT Sun Oct 5 2025
...FREEZE WARNING IN EFFECT FROM 1 AM TO 10 AM MDT MONDAY...
.TODAY...
Sky/weather.........Mostly cloudy. Chance of rain through the day.
Isolated thunderstorms in the afternoon. Chance
of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....45-50.
24 hr trend......10 degrees cooler.
Min humidity........61-67 percent.
24 hr trend......18 percent wetter.
20-foot winds.......West winds 10 to 15 mph until 1200, then north
until 1500, then east. Gusts up to 25 mph.
Ridge top winds.....West around 15 mph until 1200, then northeast.
Chc of wetting rain.7 percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of rain and isolated
thunderstorms in the evening. Slight chance of
rain after midnight. Chance of precipitation 50
percent.
Chance of thunder...10 percent.
Min temperature.....30-35.
24 hr trend......3 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.15 percent until 2400, then zero percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......1000-3000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Max temperature.....48-53.
24 hr trend......3 degrees warmer.
Min humidity........42-48 percent.
24 hr trend......19 percent drier.
20-foot winds.......North winds around 10 mph until 1200, then
upslope/upvalley 5-9 mph until 1500, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3400-5200 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows around 30. Winds generally
less than 10 mph.
.TUESDAY...Clear. Lows in the lower 30s. Highs around 60. Winds
generally less than 10 mph.
.WEDNESDAY...Clear. Lows in the upper 30s. Highs in the mid 60s.
Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the
upper 60s. South winds around 10 mph.
.FRIDAY...Partly cloudy with chance of rain. Lows in the lower
40s. Highs in the upper 60s.
.SATURDAY...Partly cloudy with chance of rain. Highs in the mid
60s.
$$
WYZ289-061100-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
259 AM MDT Sun Oct 5 2025
...FREEZE WARNING IN EFFECT FROM 1 AM TO 10 AM MDT MONDAY...
.TODAY...
Sky/weather.........Mostly cloudy. Snow likely in the morning. Rain
likely through the day. Isolated thunderstorms
in the afternoon. No snow accumulation. Chance
of precipitation 70 percent.
Chance of thunder...10 percent.
Max temperature.....40-45.
24 hr trend......16 degrees cooler.
Min humidity........73-79 percent.
24 hr trend......25 percent wetter.
20-foot winds.......Northwest winds 10 to 15 mph until 1200, then
northeast. Gusts up to 30 mph.
Ridge top winds.....Northwest around 15 mph until 1200, then
northeast.
Chc of wetting rain.32 percent.
Transport winds.....North around 15 mph until 1200, then east.
Mixing Height.......1200-2800 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Mostly cloudy. Rain likely and isolated
thunderstorms in the evening. Snow through the
night. Rain after midnight. Little or no snow
accumulation. Chance of precipitation near 100
percent.
Chance of thunder...10 percent.
Min temperature.....31-36.
24 hr trend......3 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 15 mph with gusts to
around 35 mph.
Ridge top winds.....Northeast around 20 mph.
Chc of wetting rain.40 percent until 2400, then 30 percent.
Transport winds.....East around 20 mph.
Mixing Height.......1000-2000 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of rain and snow early in the
morning. Chance of precipitation 20 percent.
Chance of thunder...0 percent.
Max temperature.....43-48.
24 hr trend......4 degrees warmer.
Min humidity........52-58 percent.
24 hr trend......19 percent drier.
20-foot winds.......North winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph. Gusts up to 25 mph.
Ridge top winds.....North 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph.
Mixing Height.......600-2200 ft agl until 1200, then 2200-4200 ft
agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows around 30. Winds generally
less than 10 mph.
.TUESDAY THROUGH WEDNESDAY...Clear. Lows 35 to 40. Highs 58 to
63. Southwest winds around 10 mph.
.THURSDAY...Mostly clear. Lows around 40. Highs in the mid 60s.
Southwest winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of rain. Lows in the mid
40s. Highs in the mid 60s.
.SATURDAY...Partly cloudy. Slight chance of rain in the morning,
then chance of rain in the afternoon. Highs in the mid 60s.
$$
WYZ300-061100-
Casper Mountain-
259 AM MDT Sun Oct 5 2025
.TODAY...
Sky/weather.........Cloudy. Chance of rain and snow in the morning,
then rain likely with possible snow and
thunderstorms in the afternoon. Snow
accumulation up to 1 inch. Chance of
precipitation 80 percent.
Chance of thunder...10 percent.
Max temperature.....39-44.
24 hr trend......19 degrees cooler.
Min humidity........84-90 percent.
24 hr trend......30 percent wetter.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 30 mph until 1200, then upslope/upvalley
5-9 mph until 1500, then northeast around 10
mph with higher gusts.
Ridge top winds.....Northwest around 15 mph until 1200, then
northeast.
Chc of wetting rain.25 percent.
Transport winds.....Northwest around 15 mph until 1200, then
northeast.
Mixing Height.......800-2400 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Cloudy. Rain, snow and isolated thunderstorms
in the evening, then rain and snow likely after
midnight. Snow accumulation up to 1 inch.
Chance of precipitation 90 percent.
Chance of thunder...10 percent.
Min temperature.....31-36.
24 hr trend......Unchanged.
Max humidity........92-98 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph with gusts to around
25 mph.
Ridge top winds.....East around 15 mph.
Chc of wetting rain.50 percent until 2400, then 40 percent.
Transport winds.....East around 15 mph.
Mixing Height.......600-1400 ft agl.
Smoke dispersal.....Poor.
.MONDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of rain and snow early in the morning,
then slight chance of rain and snow until late
afternoon. Chance of precipitation 30 percent.
Chance of thunder...0 percent.
Max temperature.....42-47.
24 hr trend......3 degrees warmer.
Min humidity........73-79 percent.
24 hr trend......12 percent drier.
20-foot winds.......Southeast winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph until 1200, then west.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southeast around 15 mph until 1200, then west.
Mixing Height.......800-2800 ft agl.
Smoke dispersal.....Poor.
.Forecast days 3 through 7......
.MONDAY NIGHT...Mostly clear. Lows around 30. Winds generally
less than 10 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs in the lower 50s.
South winds around 10 mph.
.WEDNESDAY...Clear. Lows in the lower 40s. Highs around 60.
Southwest winds around 15 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the
lower 60s. South winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of rain. Lows in the mid
40s. Highs in the lower 60s.
.SATURDAY...Mostly sunny. Slight chance of rain in the afternoon.
Highs in the mid 60s.
$$