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

14°C

57°F

Humidity 54%
Wind Speed SSW 3 MPH
Barometer NA
Dewpoint 4°C (40°F)
Visibility NA
Last update 10 Jul 04:15 AM MDT
Extended Forecast for

Mammoth WY

  • Today

    Today: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 31. Southwest wind 8 to 16 km/h, with gusts as high as 35 km/h.

    High: 31 °C

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 12. West southwest wind 8 to 14 km/h becoming south southeast after midnight. Winds could gust as high as 34 km/h.

    Low: 12 °C

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 33. South southeast wind 10 to 15 km/h becoming southwest 16 to 21 km/h in the afternoon. Winds could gust as high as 45 km/h.

    High: 33 °C

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 13. Southwest wind 10 to 16 km/h becoming southeast after midnight. Winds could gust as high as 37 km/h.

    Low: 13 °C

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 36. Breezy, with a southeast wind 8 to 13 km/h becoming south southwest 19 to 24 km/h in the afternoon. Winds could gust as high as 48 km/h.

    High: 36 °C

    Sunny then
    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16. Southwest wind 11 to 16 km/h becoming light and variable after midnight. Winds could gust as high as 40 km/h.

    Low: 16 °C

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 35. Light and variable wind becoming west 6 to 11 km/h in the afternoon. Winds could gust as high as 32 km/h.

    High: 35 °C

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16.

    Low: 16 °C

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 33.

    High: 33 °C

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 31. Southwest wind 8 to 16 km/h, with gusts as high as 35 km/h.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 12. West southwest wind 8 to 14 km/h becoming south southeast after midnight. Winds could gust as high as 34 km/h.
Saturday
Sunny, with a high near 33. South southeast wind 10 to 15 km/h becoming southwest 16 to 21 km/h in the afternoon. Winds could gust as high as 45 km/h.
Saturday Night
Mostly clear, with a low around 13. Southwest wind 10 to 16 km/h becoming southeast after midnight. Winds could gust as high as 37 km/h.
Sunday
Mostly sunny and hot, with a high near 36. Breezy, with a southeast wind 8 to 13 km/h becoming south southwest 19 to 24 km/h in the afternoon. Winds could gust as high as 48 km/h.
Sunday Night
Partly cloudy, with a low around 16. Southwest wind 11 to 16 km/h becoming light and variable after midnight. Winds could gust as high as 40 km/h.
Monday
Sunny, with a high near 35. Light and variable wind becoming west 6 to 11 km/h in the afternoon. Winds could gust as high as 32 km/h.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 33.
Tuesday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 15.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 31.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 14.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 m)
Last Update:
3:46 am MDT Jul 10, 2026
Forecast Valid:
5am MDT Jul 10, 2026-6pm MDT Jul 16, 2026
 
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Additional Resources

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