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

39°F

4°C

Humidity 51%
Wind Speed NW 6 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 03 Apr 06:15 PM MDT
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Northwest wind around 5 mph becoming light and variable.

    Low: 27 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 55. Light and variable wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. West wind 5 to 7 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. West wind around 6 mph becoming light and variable.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61. Light and variable wind becoming southwest 5 to 9 mph in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. South wind 5 to 8 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Breezy.

    High: 61 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain showers before midnight, then a chance of rain and snow showers. Snow level 8400 feet lowering to 6500 feet after midnight . Mostly cloudy, with a low around 35. Breezy. Chance of precipitation is 30%.

    Low: 35 °F

    Slight Chance
    Showers and
    Breezy then
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Northwest wind around 5 mph becoming light and variable.
Saturday
Sunny, with a high near 55. Light and variable wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 30. West wind 5 to 7 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 59. Light and variable wind becoming west around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 34. West wind around 6 mph becoming light and variable.
Monday
Mostly sunny, with a high near 61. Light and variable wind becoming southwest 5 to 9 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 36. South wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 61. Breezy.
Tuesday Night
A slight chance of rain showers before midnight, then a chance of rain and snow showers. Snow level 8400 feet lowering to 6500 feet after midnight . Mostly cloudy, with a low around 35. Breezy. Chance of precipitation is 30%.
Wednesday
A chance of rain and snow showers before noon, then a chance of rain showers. Snow level 5900 feet. Partly sunny, with a high near 50. Chance of precipitation is 50%.
Wednesday Night
A chance of rain and snow showers. Snow level 6300 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 30.
Thursday
A chance of rain and snow showers. Partly sunny, with a high near 48.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28.
Friday
A chance of rain and snow showers. Mostly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
6:32 pm MDT Apr 3, 2026
Forecast Valid:
7pm MDT Apr 3, 2026-6pm MDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation