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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

67°F

19°C

Humidity 19%
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 21 Apr 07:15 PM MDT
Extended Forecast for

5 Miles ESE Mount Holmes WY

Winter Weather Advisory April 22, 12:00pm until April 23, 11:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Scattered showers, mainly before midnight. Snow level 10500 feet lowering to 8500 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 33. South wind 7 to 13 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Rain and snow showers likely before 3pm, then snow showers. Some thunder is also possible. High near 41. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Breezy.
    Scattered
    Rain/Snow
    then Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow showers. Some thunder is also possible. Low around 26. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 26 °F

    Snow Showers
    and Breezy

  • Thursday

    Thursday: Snow showers. Some thunder is also possible. High near 36. West southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 36 °F

    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers. Some thunder is also possible. Low around 16. West southwest wind 7 to 11 mph becoming north northwest in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 16 °F

    Snow Showers
    then Snow
    Showers
    Likely

  • Friday

    Friday: Snow showers. Some thunder is also possible. High near 29. West northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 29 °F

    Snow Showers

  • Friday Night

    Friday Night: A 50 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 12. North northeast wind 3 to 7 mph.

    Low: 12 °F

    Chance Snow
    Showers then
    Slight Chance
    Snow Showers

  • Saturday

    Saturday: A 50 percent chance of snow showers. Mostly sunny, with a high near 34.

    High: 34 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Scattered showers, mainly before midnight. Snow level 10500 feet lowering to 8500 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 33. South wind 7 to 13 mph. Chance of precipitation is 30%.
Wednesday
Rain and snow showers likely before 3pm, then snow showers. Some thunder is also possible. High near 41. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers. Some thunder is also possible. Low around 26. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow showers. Some thunder is also possible. High near 36. West southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
Snow showers. Some thunder is also possible. Low around 16. West southwest wind 7 to 11 mph becoming north northwest in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday
Snow showers. Some thunder is also possible. High near 29. West northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Friday Night
A 50 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 12. North northeast wind 3 to 7 mph.
Saturday
A 50 percent chance of snow showers. Mostly sunny, with a high near 34.
Saturday Night
A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 17.
Sunday
A 50 percent chance of snow showers. Some thunder is also possible. Partly sunny, with a high near 38.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 20.
Monday
A chance of snow showers. Some thunder is also possible. Partly sunny, with a high near 39.
Monday Night
A slight chance of snow showers. Mostly cloudy, with a low around 22.
Tuesday
A chance of snow showers. Some thunder is also possible. Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Mount Holmes WY
 44.81°N 110.75°W (Elev. 7641 ft)
Last Update:
6:33 pm MDT Apr 21, 2026
Forecast Valid:
8pm MDT Apr 21, 2026-6pm MDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation