Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

40°F

4°C

Humidity 70%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 19 Nov 04:15 AM MST
Extended Forecast for

Mammoth WY

  • Today

    Today: A slight chance of showers between 3pm and 4pm.  Partly sunny, with a high near 44. South southwest wind 5 to 8 mph.  Chance of precipitation is 20%.

    High: 44 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Southeast wind 3 to 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 48. Southeast wind around 6 mph becoming calm  in the morning.

    High: 48 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50. South wind around 6 mph becoming west southwest in the afternoon.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31. South wind around 7 mph.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 45. South southwest wind 7 to 9 mph.

    High: 45 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow showers before 11am, then a slight chance of rain showers.  Snow level 5800 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 48. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers between 3pm and 4pm. Partly sunny, with a high near 44. South southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 34. Southeast wind 3 to 6 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 48. Southeast wind around 6 mph becoming calm in the morning.
Thursday Night
Mostly clear, with a low around 29. Calm wind becoming south southeast around 5 mph after midnight.
Friday
Sunny, with a high near 50. South wind around 6 mph becoming west southwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 31. South wind around 7 mph.
Saturday
Partly sunny, with a high near 45. South southwest wind 7 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
A slight chance of rain and snow showers before 11am, then a slight chance of rain showers. Snow level 5800 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 48. Chance of precipitation is 20%.
Sunday Night
A slight chance of rain and snow showers after 11pm. Snow level 6900 feet lowering to 6300 feet after midnight . Mostly cloudy, with a low around 33. Chance of precipitation is 20%.
Monday
A slight chance of rain and snow showers. Snow level 6400 feet. Partly sunny, with a high near 47.
Monday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 27.
Tuesday
A chance of snow showers. Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
3:48 am MST Nov 19, 2025
4am MST Nov 19, 2025-6pm MST Nov 25, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database