Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

16°F

-9°C

Humidity 88%
Wind Speed N 10 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Wind Chill4°F (-16°C)
Last update 18 Feb 11:15 AM MST
Extended Forecast for

Mammoth WY

Winter Weather Advisory February 18, 12:05pm until February 18, 11:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 18, 12:05pm until February 18, 11:00pm

    NOW until 11:00pm Wed

    Winter Weather Advisory

  • This Afternoon

    High: 24 °F

    Snow Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of snow showers, mainly before 9pm.  Mostly cloudy, with a low around 8. Wind chill values as low as zero. Northwest wind 8 to 13 mph becoming light west  after midnight.  New snow accumulation of less than one inch possible.

    Low: 8 °F

    Chance Snow
    Showers

  • Thursday

    Thursday: A slight chance of snow showers between 2pm and 3pm.  Mostly sunny, with a high near 23. Calm wind becoming west southwest around 6 mph in the afternoon.  Chance of precipitation is 20%.

    High: 23 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 5. South southeast wind 3 to 6 mph.

    Low: 5 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow showers after 11am.  Partly sunny, with a high near 28. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 28 °F

    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10. South southwest wind 6 to 8 mph.

    Low: 10 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 32. South southwest wind around 8 mph, with gusts as high as 20 mph.

    High: 32 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow showers likely. Mostly cloudy, with a temperature falling to around 14 by 5pm. Wind chill values as low as zero. Northwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
A 40 percent chance of snow showers, mainly before 9pm. Mostly cloudy, with a low around 8. Wind chill values as low as zero. Northwest wind 8 to 13 mph becoming light west after midnight. New snow accumulation of less than one inch possible.
Thursday
A slight chance of snow showers between 2pm and 3pm. Mostly sunny, with a high near 23. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 5. South southeast wind 3 to 6 mph.
Friday
A 20 percent chance of snow showers after 11am. Partly sunny, with a high near 28. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 10. South southwest wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 32. South southwest wind around 8 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 12.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Mostly clear, with a low around 21.
Monday
Sunny, with a high near 45.
Monday Night
A chance of rain and snow showers. Partly cloudy, with a low around 29.
Tuesday
A chance of snow showers. Partly sunny, with a high near 41. Breezy.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
11:31 am MST Feb 18, 2026
12pm MST Feb 18, 2026-6pm MST Feb 24, 2026
 
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Additional Resources

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