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

55°F

13°C

Humidity 44%
Wind Speed S 6 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 11 Apr 02:15 PM MDT
Extended Forecast for

Mammoth WY

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, mainly before 5pm. Partly sunny, with a steady temperature around 56. Breezy, with a south southwest wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 56 °F

    Scattered
    Showers and
    Breezy

  • Tonight

    Tonight: Scattered showers, mainly before midnight. Mostly cloudy, with a low around 38. South wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 38 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then scattered showers and thunderstorms after 5pm. Mostly sunny, with a high near 58. South southwest wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 58 °F

    Mostly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before midnight. Snow level 7700 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 36. South southwest wind 9 to 14 mph, with gusts as high as 28 mph.

    Low: 36 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of snow showers before noon, then rain and snow showers likely between noon and 3pm, then rain showers likely after 3pm. Some thunder is also possible. Snow level rising to 6400 feet in the afternoon. Partly sunny, with a high near 49. Southwest wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 49 °F

    Chance Snow
    Showers then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: A chance of rain showers before 3am, then a slight chance of rain and snow showers. Snow level 6700 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 34. Southwest wind 5 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Tuesday

    Tuesday: A slight chance of snow showers before noon, then a chance of rain and snow showers. Some thunder is also possible. Snow level rising to 6600 feet in the afternoon. Partly sunny, with a high near 50. Breezy, with a southwest wind 6 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

    High: 50 °F

    Slight Chance
    Snow Showers
    then Chance
    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Breezy.

    Low: 36 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A chance of snow showers before 9am, then rain and snow showers likely between 9am and 3pm, then rain showers likely after 3pm. Some thunder is also possible. Snow level rising to 6700 feet in the afternoon. Mostly cloudy, with a high near 47. Breezy. Chance of precipitation is 70%.

    High: 47 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly before 5pm. Partly sunny, with a steady temperature around 56. Breezy, with a south southwest wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Tonight
Scattered showers, mainly before midnight. Mostly cloudy, with a low around 38. South wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday
Scattered showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then scattered showers and thunderstorms after 5pm. Mostly sunny, with a high near 58. South southwest wind 6 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers before midnight. Snow level 7700 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 36. South southwest wind 9 to 14 mph, with gusts as high as 28 mph.
Monday
A chance of snow showers before noon, then rain and snow showers likely between noon and 3pm, then rain showers likely after 3pm. Some thunder is also possible. Snow level rising to 6400 feet in the afternoon. Partly sunny, with a high near 49. Southwest wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday Night
A chance of rain showers before 3am, then a slight chance of rain and snow showers. Snow level 6700 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 34. Southwest wind 5 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Tuesday
A slight chance of snow showers before noon, then a chance of rain and snow showers. Some thunder is also possible. Snow level rising to 6600 feet in the afternoon. Partly sunny, with a high near 50. Breezy, with a southwest wind 6 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 36. Breezy.
Wednesday
A chance of snow showers before 9am, then rain and snow showers likely between 9am and 3pm, then rain showers likely after 3pm. Some thunder is also possible. Snow level rising to 6700 feet in the afternoon. Mostly cloudy, with a high near 47. Breezy. Chance of precipitation is 70%.
Wednesday Night
Rain showers before 9pm, then rain and snow showers. Some thunder is also possible. Snow level 6900 feet lowering to 6100 feet after midnight . Low around 34. Breezy. Chance of precipitation is 90%.
Thursday
Snow showers. Some thunder is also possible. Mostly cloudy, with a high near 42.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 20.
Friday
A chance of snow showers. Mostly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
2:19 pm MDT Apr 11, 2026
Forecast Valid:
2pm MDT Apr 11, 2026-6pm MDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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