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

36°F

2°C

Humidity 53%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Last update 09 Apr 04:15 AM MDT
Extended Forecast for

Mammoth WY

  • Today

    Today: Sunny, with a high near 60. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Northwest wind 5 to 9 mph becoming light and variable.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 67. East southeast wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 67 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. South southeast wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 63. Breezy, with a south southwest wind 7 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.

    High: 63 °F

    Breezy.
    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 41. South southwest wind 6 to 14 mph, with gusts as high as 30 mph.

    Low: 41 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 56. South southwest wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.

    High: 56 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of rain showers before midnight, then a chance of rain and snow showers. Snow level 7800 feet lowering to 6600 feet after midnight . Mostly cloudy, with a low around 36. Chance of precipitation is 40%.

    Low: 36 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Monday

    Monday: A chance of rain and snow showers before noon, then rain showers likely. Snow level 6400 feet. Partly sunny, with a high near 52. Chance of precipitation is 70%.

    High: 52 °F

    Chance
    Rain/Snow
    then Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 60. Calm wind becoming northwest 5 to 9 mph in the morning.
Tonight
Partly cloudy, with a low around 36. Northwest wind 5 to 9 mph becoming light and variable.
Friday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 67. East southeast wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 42. South southeast wind 7 to 9 mph, with gusts as high as 21 mph.
Saturday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 63. Breezy, with a south southwest wind 7 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 41. South southwest wind 6 to 14 mph, with gusts as high as 30 mph.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 56. South southwest wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
Sunday Night
A chance of rain showers before midnight, then a chance of rain and snow showers. Snow level 7800 feet lowering to 6600 feet after midnight . Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Monday
A chance of rain and snow showers before noon, then rain showers likely. Snow level 6400 feet. Partly sunny, with a high near 52. Chance of precipitation is 70%.
Monday Night
A chance of rain showers before midnight, then a chance of rain and snow showers. Snow level 6900 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Tuesday
A chance of rain and snow showers. Snow level 6000 feet rising to 6700 feet in the afternoon. Partly sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
A slight chance of rain and snow showers. Snow level 5700 feet rising to 7000 feet in the afternoon. Partly 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:
4:02 am MDT Apr 9, 2026
Forecast Valid:
5am MDT Apr 9, 2026-6pm MDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation