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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

22°F

-6°C

Humidity 62%
Wind Speed SW 14 MPH
Barometer NA
Dewpoint 11°F (-12°C)
Visibility NA
Wind Chill9°F (-13°C)
Last update 09 Jan 06:15 PM MST
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 15. South southwest wind 5 to 8 mph.

    Low: 15 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 35. South wind 6 to 10 mph.

    High: 35 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 16. South southeast wind around 7 mph.

    Low: 16 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 39. South southwest wind around 6 mph.

    High: 39 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19. South wind around 7 mph.

    Low: 19 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 40. South southwest wind around 7 mph.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. South southwest wind around 7 mph.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 42.

    High: 42 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 15. South southwest wind 5 to 8 mph.
Saturday
Mostly sunny, with a high near 35. South wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 16. South southeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 39. South southwest wind around 6 mph.
Sunday Night
Partly cloudy, with a low around 19. South wind around 7 mph.
Monday
Partly sunny, with a high near 40. South southwest wind around 7 mph.
Monday Night
Mostly cloudy, with a low around 25. South southwest wind around 7 mph.
Tuesday
A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Mostly clear, with a low around 21.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Mostly clear, with a low around 17.
Friday
Mostly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
5:33 pm MST Jan 9, 2026
Forecast Valid:
6pm MST Jan 9, 2026-6pm MST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation