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

38°F

3°C

Humidity 91%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 16 Apr 01:15 AM MDT
Extended Forecast for

5 Miles ESE Mount Holmes WY

Winter Storm Warning until April 17, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until April 17, 06:00am

    NOW until 6:00am Fri

    Winter Storm Warning

  • Overnight

    Low: 23 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Thursday

    Thursday: Snow showers. Some thunder is also possible. High near 28. Breezy, with a southwest wind 11 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 28 °F

    Snow Showers
    and Breezy

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before 8pm. Mostly cloudy, with a low around 9. Wind chill values as low as zero. North northwest wind 5 to 10 mph becoming west in the evening. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 9 °F

    Snow Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: Snow showers, mainly after noon. Some thunder is also possible. High near 28. West wind 5 to 11 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow
    Showers then
    Snow Showers

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 10. West wind 5 to 10 mph becoming light. New snow accumulation of less than a half inch possible.

    Low: 10 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 38. West southwest wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 38 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 18. West southwest wind 6 to 11 mph becoming south after midnight. Winds could gust as high as 24 mph.

    Low: 18 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

Overnight
Snow showers. The snow could be heavy at times. Some thunder is also possible. Patchy blowing snow before 3am. Low around 23. Breezy, with a southwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.
Thursday
Snow showers. Some thunder is also possible. High near 28. Breezy, with a southwest wind 11 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Thursday Night
Snow showers likely, mainly before 8pm. Mostly cloudy, with a low around 9. Wind chill values as low as zero. North northwest wind 5 to 10 mph becoming west in the evening. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday
Snow showers, mainly after noon. Some thunder is also possible. High near 28. West wind 5 to 11 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 10. West wind 5 to 10 mph becoming light. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 38. West southwest wind 5 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 18. West southwest wind 6 to 11 mph becoming south after midnight. Winds could gust as high as 24 mph.
Sunday
Sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
A chance of showers. Snow level 8400 feet rising to 9100 feet in the afternoon. Mostly sunny, with a high near 56.
Tuesday Night
A chance of rain and snow showers. Snow level 9100 feet lowering to 8100 feet after midnight . Mostly cloudy, with a low around 31.
Wednesday
Rain and snow showers likely. Some thunder is also possible. Snow level 7700 feet. Partly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Mount Holmes WY
 44.81°N 110.75°W (Elev. 7641 ft)
Last Update:
12:33 am MDT Apr 16, 2026
Forecast Valid:
1am MDT Apr 16, 2026-6pm MDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation