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Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

NA

28°F

-2°C

Humidity 67%
Wind Speed NNW 10 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill19°F (-7°C)
Last update 23 Apr 08:15 PM MDT
Extended Forecast for

Mammoth WY

Winter Weather Advisory April 23, 08:34pm until April 23, 11:00pm
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory April 23, 08:34pm until April 23, 11:00pm

    NOW until 11:00pm Thu

    Winter Weather Advisory

  • Tonight

    Low: 25 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 50 percent chance of snow showers, mainly before 10am. Some thunder is also possible. Partly sunny, with a high near 32. Light west northwest wind becoming northwest 8 to 13 mph in the morning. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    Showers then
    Slight Chance
    Snow Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 18. North northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 18 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 45. Calm wind becoming west southwest 5 to 7 mph in the morning.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 27. West southwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 27 °F

    Slight Chance
    Snow Showers

  • Sunday

    Sunday: Snow showers likely. Some thunder is also possible. Partly sunny, with a high near 48. Light and variable wind becoming north northwest 5 to 8 mph in the morning. Chance of precipitation is 60%.

    High: 48 °F

    Snow Showers
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 29. North wind 3 to 7 mph.

    Low: 29 °F

    Chance Snow
    Showers

  • Monday

    Monday: Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 47. Chance of precipitation is 70%.

    High: 47 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

Detailed Forecast

Tonight
A chance of snow showers before midnight, then a chance of snow showers after 1am. Some thunder is also possible. Mostly cloudy, with a low around 25. Northwest wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 40%. Total nighttime snow accumulation of less than one inch possible.
Friday
A 50 percent chance of snow showers, mainly before 10am. Some thunder is also possible. Partly sunny, with a high near 32. Light west northwest wind becoming northwest 8 to 13 mph in the morning. New snow accumulation of less than a half inch possible.
Friday Night
Mostly clear, with a low around 18. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 45. Calm wind becoming west southwest 5 to 7 mph in the morning.
Saturday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 27. West southwest wind 5 to 7 mph becoming light and variable after midnight.
Sunday
Snow showers likely. Some thunder is also possible. Partly sunny, with a high near 48. Light and variable wind becoming north northwest 5 to 8 mph in the morning. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 29. North wind 3 to 7 mph.
Monday
Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 47. Chance of precipitation is 70%.
Monday Night
A chance of rain and snow showers before midnight. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Tuesday
A slight chance of snow showers before noon, then a chance of rain and snow showers. Some thunder is also possible. Mostly sunny, with a high near 51. Chance of precipitation is 30%.
Tuesday Night
A slight chance of rain and snow showers. Snow level 6400 feet. Mostly cloudy, with a low around 31.
Wednesday
A chance of rain and snow showers. Some thunder is also possible. Snow level 5900 feet rising to 6700 feet in the afternoon. Mostly sunny, with a high near 55.
Wednesday Night
A slight chance of showers. Snow level 6900 feet lowering to 5900 feet after midnight . Partly cloudy, with a low around 32.
Thursday
A slight chance of rain and snow showers. Snow level rising to 6500 feet in the afternoon. Mostly sunny, with a high near 56.
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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:
6:02 pm MDT Apr 23, 2026
Forecast Valid:
8pm MDT Apr 23, 2026-6pm MDT Apr 30, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation