Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

11°F

-12°C

Humidity 79%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 6°F (-14°C)
Visibility NA
Last update 21 Feb 06:15 AM MST
Extended Forecast for

Mammoth WY

  • Today

    Today: Mostly sunny, with a high near 32. South southwest wind 7 to 9 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 15. South southeast wind around 7 mph.

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 42. South southwest wind 7 to 9 mph.

    High: 42 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22. South wind around 8 mph.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow showers after 11pm.  Mostly cloudy, with a low around 32. South southwest wind around 11 mph.

    Low: 32 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: Snow showers likely before 11am, then rain, possibly mixed with snow showers.  Snow level rising to 6300 feet in the afternoon. High near 42. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%.

    High: 42 °F

    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain and snow showers, becoming all snow after 11pm.  Low around 30. Breezy.  Chance of precipitation is 80%.

    Low: 30 °F

    Breezy.
    Rain/Snow
    then Snow
    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of snow showers, mainly before 11am.  Mostly sunny, with a high near 40. Breezy.

    High: 40 °F

    Chance Snow
    Showers and
    Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 32. South southwest wind 7 to 9 mph.
Tonight
Mostly cloudy, with a low around 15. South southeast wind around 7 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 42. South southwest wind 7 to 9 mph.
Sunday Night
Partly cloudy, with a low around 22. South wind around 8 mph.
Monday
Mostly sunny, with a high near 45. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 32. South southwest wind around 11 mph.
Tuesday
Snow showers likely before 11am, then rain, possibly mixed with snow showers. Snow level rising to 6300 feet in the afternoon. High near 42. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Tuesday Night
Rain and snow showers, becoming all snow after 11pm. Low around 30. Breezy. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of snow showers, mainly before 11am. Mostly sunny, with a high near 40. Breezy.
Wednesday Night
Mostly clear, with a low around 21. Breezy.
Thursday
Mostly sunny, with a high near 40. Breezy.
Thursday Night
A slight chance of snow showers. Partly cloudy, with a low around 27. Breezy.
Friday
A chance of snow showers. Mostly sunny, with a high near 42. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
6:31 am MST Feb 21, 2026
7am MST Feb 21, 2026-6pm MST Feb 27, 2026
 
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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