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 84%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 15 Apr 10:15 PM MDT
Extended Forecast for

5 Miles SSW Mammoth Hot Springs 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

  • Tonight

    Low: 25 °F

    Rain/Snow and
    Breezy then
    Heavy Snow
    and Patchy
    Blowing Snow

  • Thursday

    Thursday: Snow before noon, then snow showers, mainly after noon. Some thunder is also possible. High near 29. Breezy, with a southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 29 °F

    Snow and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 12. North northwest wind 5 to 10 mph becoming southwest in the evening. New snow accumulation of less than a half inch possible.

    Low: 12 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Friday

    Friday: Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 29. West northwest wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 29 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 12. West northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 23 mph. New snow accumulation of less than a half inch possible.

    Low: 12 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 40. Southwest wind 5 to 11 mph, with gusts as high as 26 mph.

    High: 40 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 20. South wind around 9 mph, with gusts as high as 22 mph.

    Low: 20 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

Tonight
Rain and snow, becoming all snow after 11pm. The snow could be heavy at times. Some thunder is also possible. Patchy blowing snow between midnight and 5am. Low around 25. Breezy, with a south southwest wind 16 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
Thursday
Snow before noon, then snow showers, mainly after noon. Some thunder is also possible. High near 29. Breezy, with a southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
A 50 percent chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 12. North northwest wind 5 to 10 mph becoming southwest in the evening. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 29. West northwest wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. 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 12. West northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 23 mph. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 40. Southwest wind 5 to 11 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 20. South wind around 9 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 59.
Tuesday Night
A chance of rain and snow showers. Snow level 9100 feet lowering to 8000 feet after midnight . Partly cloudy, with a low around 34.
Wednesday
A chance of rain and snow showers. Snow level 7800 feet. Partly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Mammoth Hot Springs WY
 44.89°N 110.74°W (Elev. 7402 ft)
Last Update:
10:03 pm MDT Apr 15, 2026
Forecast Valid:
10pm MDT Apr 15, 2026-6pm MDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation