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

40°F

4°C

Humidity 61%
Wind Speed SSW 11 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 07 Feb 09:15 PM MST
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South wind 6 to 9 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Isolated showers between 2pm and 4pm. Snow level rising to 6800 feet in the afternoon. Partly sunny, with a high near 46. Breezy, with a south southwest wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 46 °F

    Breezy.
    Partly Sunny
    then Isolated
    Showers

  • Sunday Night

    Sunday Night: Rain and snow showers. Snow level 6500 feet. Low around 36. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 36 °F

    Rain/Snow and
    Breezy

  • Monday

    Monday: Rain and snow showers, becoming all snow after 8am. Some thunder is also possible. High near 41. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 41 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 21. West wind around 6 mph becoming light and variable. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 38. South southeast wind around 5 mph becoming light and variable in the morning.

    High: 38 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 23. Northwest wind around 5 mph becoming southeast in the evening.

    Low: 23 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of snow showers. Partly sunny, with a high near 39.

    High: 39 °F

    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. South wind 6 to 9 mph.
Sunday
Isolated showers between 2pm and 4pm. Snow level rising to 6800 feet in the afternoon. Partly sunny, with a high near 46. Breezy, with a south southwest wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Sunday Night
Rain and snow showers. Snow level 6500 feet. Low around 36. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Rain and snow showers, becoming all snow after 8am. Some thunder is also possible. High near 41. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday Night
A 30 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 21. West wind around 6 mph becoming light and variable. New snow accumulation of less than a half inch possible.
Tuesday
Partly sunny, with a high near 38. South southeast wind around 5 mph becoming light and variable in the morning.
Tuesday Night
A 30 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 23. Northwest wind around 5 mph becoming southeast in the evening.
Wednesday
A 40 percent chance of snow showers. Partly sunny, with a high near 39.
Wednesday Night
A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 38.
Friday Night
A slight chance of snow showers. Mostly cloudy, with a low around 21.
Saturday
A chance of snow showers. Partly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
9:47 pm MST Feb 7, 2026
Forecast Valid:
10pm MST Feb 7, 2026-6pm MST Feb 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation