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

37°F

3°C

Humidity 65%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 07 Apr 03:15 AM MDT
Extended Forecast for

Mammoth WY

  • Today

    Today: A slight chance of showers between 1pm and 5pm. Mostly sunny, with a high near 61. Breezy, with a south southeast wind 6 to 11 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 20%.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of showers before midnight. Snow level 8500 feet lowering to 5700 feet after midnight . Partly cloudy, with a low around 33. Breezy, with a west wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 33 °F

    Slight Chance
    Showers and
    Breezy then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 56. Light west southwest wind increasing to 8 to 13 mph in the morning.

    High: 56 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37. West southwest wind 5 to 10 mph becoming light south southwest in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. Light and variable wind becoming west 5 to 8 mph in the morning.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after noon. Partly sunny, with a high near 65. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A slight chance of showers between 1pm and 5pm. Mostly sunny, with a high near 61. Breezy, with a south southeast wind 6 to 11 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers before midnight. Snow level 8500 feet lowering to 5700 feet after midnight . Partly cloudy, with a low around 33. Breezy, with a west wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Sunny, with a high near 56. Light west southwest wind increasing to 8 to 13 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 37. West southwest wind 5 to 10 mph becoming light south southwest in the evening.
Thursday
Sunny, with a high near 60. Light and variable wind becoming west 5 to 8 mph in the morning.
Thursday Night
Mostly clear, with a low around 37. West northwest wind 5 to 7 mph becoming calm in the evening.
Friday
A 20 percent chance of showers after noon. Partly sunny, with a high near 65. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Sunday
Showers likely. Partly sunny, with a high near 58.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 38.
Monday
Rain and snow showers likely. Some thunder is also possible. Snow level 6600 feet. Mostly cloudy, with a high near 51.
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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:
3:32 am MDT Apr 7, 2026
Forecast Valid:
4am MDT Apr 7, 2026-6pm MDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation