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

40°F

4°C

Humidity 62%
Wind Speed WSW 6 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 06 Apr 11:15 PM MDT
Extended Forecast for

Mammoth WY

  • Overnight

    Overnight: Mostly clear, with a low around 36. South southeast wind around 5 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: 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 30 mph. Chance of precipitation is 20%.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Snow level 8500 feet lowering to 5700 feet after midnight . Partly cloudy, with a low around 32. Breezy, with a west wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.

    Low: 32 °F

    Slight Chance
    Showers and
    Breezy then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. Light west southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. West southwest wind 5 to 10 mph becoming light south southwest in the evening.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. Light and variable wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 20 mph.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after noon. Partly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 36. South southeast wind around 5 mph.
Tuesday
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 30 mph. Chance of precipitation is 20%.
Tuesday Night
A 20 percent chance of showers before midnight. Snow level 8500 feet lowering to 5700 feet after midnight . Partly cloudy, with a low around 32. Breezy, with a west wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.
Wednesday
Sunny, with a high near 57. Light west southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 36. 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. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 36. 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.
Friday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 41.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 41.
Sunday
Showers likely. Partly sunny, with a high near 58.
Sunday Night
Rain and snow showers likely. 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:
10:32 pm MDT Apr 6, 2026
Forecast Valid:
12am MDT Apr 7, 2026-6pm MDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation