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

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

28°F

-2°C

Humidity 65%
Wind Speed SSW 8 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill20°F (-7°C)
Last update 06 Feb 06:15 AM MST
Extended Forecast for

Mammoth WY

  • Today

    Today: Sunny, with a high near 50. South southeast wind 3 to 7 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. South southeast wind around 7 mph.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 47. South wind 3 to 6 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. South wind around 8 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 46. South wind 8 to 13 mph, with gusts as high as 30 mph.

    High: 46 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain showers before 2am, then a chance of rain and snow showers. Snow level 6500 feet. Mostly cloudy, with a low around 36. South wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 36 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Monday

    Monday: Rain and snow showers, becoming all snow after 11am. Some thunder is also possible. High near 41. West wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    High: 41 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of snow showers, mainly before 11pm. Partly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of snow showers after 11am. Mostly sunny, with a high near 36.

    High: 36 °F

    Slight Chance
    Snow Showers

Detailed Forecast

Today
Sunny, with a high near 50. South southeast wind 3 to 7 mph.
Tonight
Mostly cloudy, with a low around 35. South southeast wind around 7 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 47. South wind 3 to 6 mph.
Saturday Night
Mostly cloudy, with a low around 32. South wind around 8 mph.
Sunday
Partly sunny, with a high near 46. South wind 8 to 13 mph, with gusts as high as 30 mph.
Sunday Night
A chance of rain showers before 2am, then a chance of rain and snow showers. Snow level 6500 feet. Mostly cloudy, with a low around 36. South wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Monday
Rain and snow showers, becoming all snow after 11am. Some thunder is also possible. High near 41. West wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Monday Night
A 30 percent chance of snow showers, mainly before 11pm. Partly cloudy, with a low around 22.
Tuesday
A 20 percent chance of snow showers after 11am. Mostly sunny, with a high near 36.
Tuesday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 18.
Wednesday
A slight chance of snow showers. Mostly sunny, with a high near 38.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 39.
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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:
5:47 am MST Feb 6, 2026
Forecast Valid:
6am MST Feb 6, 2026-6pm MST Feb 12, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation