Winter Storm in the Central Appalachians through the Northeast; Heavy Snow in the Great Basin and Rockies

A winter storm will impact the central Appalachians to the Northeast through the night. Accumulating snow is expected for interior New England and the northern Mid-Atlantic. Scattered showers and occasional thunderstorms will persist across Florida and the Southeast coast. Locally heavy mountain snow is expected in the Great Basin and Rockies over the next couple of days. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

19°F

-7°C

Humidity 87%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility NA
Last update 03 Dec 04:15 AM MST
Extended Forecast for

Mammoth WY

  • Today

    Today: Mostly sunny, with a high near 30. Calm wind becoming south around 5 mph.

    High: 30 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 19. South wind around 6 mph.

    Low: 19 °F

    Partly Cloudy

  • Thursday

    Thursday: Snow showers likely, mainly after 11am.  Mostly cloudy, with a high near 30. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Snow Showers
    Likely

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before 11pm.  Mostly cloudy, with a low around 21. South southwest wind 7 to 9 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Snow Showers
    Likely

  • Friday

    Friday: A 40 percent chance of snow showers.  Mostly cloudy, with a high near 34. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.  New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Snow showers.  Low around 26. Southwest wind around 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%.

    Low: 26 °F

    Snow Showers

  • Saturday

    Saturday: Snow showers likely, mainly before 11am.  Mostly cloudy, with a high near 38. West southwest wind around 10 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%.

    High: 38 °F

    Snow Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of snow showers.  Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: A 30 percent chance of snow showers, mainly after 11am.  Mostly cloudy, with a high near 37.

    High: 37 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 30. Calm wind becoming south around 5 mph.
Tonight
Partly cloudy, with a low around 19. South wind around 6 mph.
Thursday
Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 30. South southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow showers likely, mainly before 11pm. Mostly cloudy, with a low around 21. South southwest wind 7 to 9 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
A 40 percent chance of snow showers. Mostly cloudy, with a high near 34. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.
Friday Night
Snow showers. Low around 26. Southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Saturday
Snow showers likely, mainly before 11am. Mostly cloudy, with a high near 38. West southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 22.
Sunday
A 30 percent chance of snow showers, mainly after 11am. Mostly cloudy, with a high near 37.
Sunday Night
A 30 percent chance of snow showers, mainly before 11pm. Mostly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
A chance of rain and snow showers. Snow level rising to 6200 feet in the afternoon. Mostly cloudy, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
4:47 am MST Dec 3, 2025
4am MST Dec 3, 2025-6pm MST Dec 9, 2025
 
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Additional Resources

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Hourly Weather Forecast

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