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Fire Weather in the Central and Southern Plains; Pacific Storms Impacting the West

Gusty to high winds and low relative humidity will bring elevated to critical fire weather to the central and southern Plains into Wednesday. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain, and heavy mountain snow. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

NA

34°F

1°C

Humidity 89%
Wind Speed SW 4 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 17 Feb 03:15 AM MST
Extended Forecast for

Mammoth WY

Winter Weather Advisory February 17, 04:04am until February 17, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 17, 04:04am until February 17, 05:00pm

    NOW until 5:00pm Tue

    Winter Weather Advisory

  • Overnight

    Low: 36 °F

    Rain/Snow

  • Tuesday

    Tuesday: Snow, mainly before 9am. Temperature falling to around 31 by 8am. Breezy, with a west southwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 36 °F⇓

    Breezy. Snow
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 22. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: Snow, mainly after 11am. High near 32. Southeast wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 32 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm. Low around 14. West wind around 7 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 14 °F

    Snow then
    Chance Snow

  • Thursday

    Thursday: A chance of snow before 11am, then a chance of snow showers after 11am. Partly sunny, with a high near 27. Southwest wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 27 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 8. South wind 6 to 8 mph.

    Low: 8 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Friday

    Friday: A 30 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 27.

    High: 27 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
Snow, possibly mixed with rain. Snow level 6000 feet. Steady temperature around 36. South wind around 9 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Tuesday
Snow, mainly before 9am. Temperature falling to around 31 by 8am. Breezy, with a west southwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 22. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Wednesday
Snow, mainly after 11am. High near 32. Southeast wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Wednesday Night
Snow, mainly before 11pm. Low around 14. West wind around 7 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday
A chance of snow before 11am, then a chance of snow showers after 11am. Partly sunny, with a high near 27. Southwest wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 8. South wind 6 to 8 mph.
Friday
A 30 percent chance of snow showers, mainly after 11am. Partly sunny, with a high near 27.
Friday Night
A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 12.
Saturday
Partly sunny, with a high near 30.
Saturday Night
Partly cloudy, with a low around 13.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Mostly clear, with a low around 23.
Monday
A chance of snow showers. Mostly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
3:31 am MST Feb 17, 2026
Forecast Valid:
4am MST Feb 17, 2026-6pm MST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation