National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

7°F

-14°C

Humidity 83%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 3°F (-16°C)
Visibility NA
Last update 19 Feb 02:15 AM MST
Extended Forecast for

Mammoth WY

  • Overnight

    Overnight: Isolated snow showers. Mostly cloudy, with a low around 5. Light north wind. Chance of precipitation is 20%.

    Low: 5 °F

    Isolated Snow
    Showers

  • Thursday

    Thursday: Scattered snow showers, mainly between 1pm and 5pm. Partly sunny, with a high near 23. Wind chill values as low as zero. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 23 °F

    Partly Sunny
    then
    Scattered
    Snow Showers

  • Thursday Night

    Thursday Night: Isolated snow showers before 8pm. Partly cloudy, with a low around 1. South southeast wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 1 °F

    Isolated Snow
    Showers then
    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 29. Wind chill values as low as -5. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 29 °F

    Increasing
    Clouds

  • Friday Night

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

    Low: 10 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 33. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.

    High: 33 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 12. South southeast wind around 7 mph.

    Low: 12 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Overnight
Isolated snow showers. Mostly cloudy, with a low around 5. Light north wind. Chance of precipitation is 20%.
Thursday
Scattered snow showers, mainly between 1pm and 5pm. Partly sunny, with a high near 23. Wind chill values as low as zero. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
Isolated snow showers before 8pm. Partly cloudy, with a low around 1. South southeast wind 3 to 6 mph. Chance of precipitation is 20%.
Friday
Increasing clouds, with a high near 29. Wind chill values as low as -5. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 10. South wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 33. South southwest wind 7 to 9 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 12. South southeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Mostly clear, with a low around 19.
Monday
Sunny, with a high near 45.
Monday Night
A slight chance of snow showers. Partly cloudy, with a low around 29.
Tuesday
Snow showers likely. Mostly cloudy, with a high near 42.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 27.
Wednesday
A chance of snow showers. Mostly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
2:32 am MST Feb 19, 2026
Forecast Valid:
2am MST Feb 19, 2026-6pm MST Feb 25, 2026
 
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Additional Resources

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Chance of Precipitation