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

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

59°F

15°C

Humidity 12%
Wind Speed SSW 14 MPH
Barometer NA
Dewpoint 6°F (-14°C)
Visibility NA
Last update 08 Apr 05:15 PM MDT
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Partly cloudy, with a low around 36. West northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 57. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 67. Southeast wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 67 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. South southeast wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly sunny, with a high near 64. Breezy, with a south southwest wind 7 to 17 mph, with gusts as high as 34 mph.

    High: 64 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 42. South wind 8 to 13 mph, with gusts as high as 26 mph.

    Low: 42 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 53. Breezy. Chance of precipitation is 70%.

    High: 53 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A chance of rain and snow showers. Snow level 7400 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 36. Chance of precipitation is 50%.

    Low: 36 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. West northwest wind 5 to 9 mph becoming calm after midnight.
Thursday
Sunny, with a high near 57. Calm wind becoming northwest 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 37. North northwest wind 5 to 8 mph becoming calm in the evening.
Friday
A slight chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 67. Southeast wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 42. South southeast wind 6 to 8 mph, with gusts as high as 20 mph.
Saturday
A 40 percent chance of showers. Mostly sunny, with a high near 64. Breezy, with a south southwest wind 7 to 17 mph, with gusts as high as 34 mph.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42. South wind 8 to 13 mph, with gusts as high as 26 mph.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 53. Breezy. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow showers. Snow level 7400 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 36. Chance of precipitation is 50%.
Monday
Rain and snow showers likely, mainly after noon. Some thunder is also possible. Snow level 6000 feet. Partly sunny, with a high near 50. Chance of precipitation is 70%.
Monday Night
A chance of rain and snow showers. Snow level 6400 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 33.
Tuesday
A chance of rain and snow showers. Snow level rising to 6300 feet in the afternoon. Mostly sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
A slight chance of rain and snow showers. Snow level 5800 feet rising to 7000 feet in the afternoon. Mostly sunny, with a high near 53. Breezy.
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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:
6:01 pm MDT Apr 8, 2026
Forecast Valid:
6pm MDT Apr 8, 2026-6pm MDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation