Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

40°F

4°C

Humidity 77%
Wind Speed S 9 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 15 Apr 11:15 PM MDT
Extended Forecast for

Mammoth WY

Winter Storm Warning until April 17, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until April 17, 06:00am

    NOW until 6:00am Fri

    Winter Storm Warning

  • Tonight

    Low: 30 °F

    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Snow showers. Some thunder is also possible.  Steady temperature around 34. East southeast wind 10 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 34 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of snow showers, mainly before 8pm.  Mostly cloudy, with a low around 18. West wind 6 to 11 mph.  New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Friday

    Friday: Snow showers likely, mainly after noon. Some thunder is also possible.  Partly sunny, with a high near 39. Southwest wind 5 to 9 mph becoming northwest in the morning.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight.  Partly cloudy, with a low around 19. West wind 5 to 9 mph becoming calm.

    Low: 19 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 50. South southwest wind 5 to 10 mph.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Tonight
Snow showers, possibly mixed with rain, becoming all snow after 4am. Some thunder is also possible. Snow level 7300 feet lowering to 5700 feet after midnight . Low around 30. Breezy, with a south wind 11 to 17 mph becoming north northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.
Thursday
Snow showers. Some thunder is also possible. Steady temperature around 34. East southeast wind 10 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
A 40 percent chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 18. West wind 6 to 11 mph. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 39. Southwest wind 5 to 9 mph becoming northwest in the morning. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 19. West wind 5 to 9 mph becoming calm.
Saturday
Sunny, with a high near 50. South southwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 27. South wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 68.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 40.
Wednesday
A chance of showers. Partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
11:33 pm MDT Apr 15, 2026
11pm MDT Apr 15, 2026-6pm MDT Apr 22, 2026
 
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Additional Resources

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