Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

12°F

-11°C

Humidity 77%
Wind Speed NNW 10 MPH
Barometer NA
Dewpoint 6°F (-14°C)
Visibility NA
Wind Chill-1°F (-18°C)
Last update 28 Nov 09:15 PM MST
Extended Forecast for

3 Miles SSW Mammoth Hot Springs WY

  • Tonight

    Tonight: Partly cloudy, with a low around -1. Wind chill values as low as -10. Blustery, with a north northwest wind 5 to 15 mph, with gusts as high as 21 mph.

    Low: -1 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 22. Wind chill values as low as -10. Light south southwest wind.

    High: 22 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 10. South wind around 6 mph becoming light and variable  after midnight.

    Low: 10 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 24. Northeast wind around 6 mph becoming north northwest in the afternoon.

    High: 24 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 4. Northwest wind around 5 mph becoming light and variable.

    Low: 4 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 23. Southwest wind 6 to 9 mph.

    High: 23 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of snow showers after 11pm.  Mostly cloudy, with a low around 14. South southwest wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 14 °F

    Chance Snow
    Showers

  • Tuesday

    Tuesday: Snow showers.  High near 25. Chance of precipitation is 80%.

    High: 25 °F

    Snow Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow showers.  Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around -1. Wind chill values as low as -10. Blustery, with a north northwest wind 5 to 15 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 22. Wind chill values as low as -10. Light south southwest wind.
Saturday Night
Mostly cloudy, with a low around 10. South wind around 6 mph becoming light and variable after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 24. Northeast wind around 6 mph becoming north northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 4. Northwest wind around 5 mph becoming light and variable.
Monday
Mostly sunny, with a high near 23. Southwest wind 6 to 9 mph.
Monday Night
A 30 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 14. South southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Tuesday
Snow showers. High near 25. Chance of precipitation is 80%.
Tuesday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 13.
Wednesday
Partly sunny, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 9.
Thursday
A slight chance of snow showers. Partly sunny, with a high near 25.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 16.
Friday
A chance of snow showers. Partly sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mammoth Hot Springs WY
 44.94°N 110.74°W (Elev. 7402 ft)
9:31 pm MST Nov 28, 2025
9pm MST Nov 28, 2025-6pm MST Dec 5, 2025
 
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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