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

44°F

7°C

Humidity 42%
Wind Speed S 8 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 21 Apr 08:15 AM MDT
Extended Forecast for

5 Miles SSW Mammoth Hot Springs WY

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

  • Today

    Today: Mostly sunny, with a high near 63. Breezy, with a south southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 63 °F

    Sunny then
    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Isolated showers between 2am and 3am. Snow level 10500 feet lowering to 8300 feet after midnight . Partly cloudy, with a low around 36. Breezy, with a south wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Isolated
    Showers and
    Breezy

  • Wednesday

    Wednesday: A chance of rain and snow showers before noon, then snow showers likely. Some thunder is also possible. Snow level 8000 feet lowering to 7400 feet in the afternoon . Increasing clouds, with a high near 46. Breezy, with a southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 46 °F

    Breezy.
    Chance
    Rain/Snow
    then Snow
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Snow showers. Low around 28. Breezy, with a southwest wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Snow Showers
    and Breezy

  • Thursday

    Thursday: Snow showers. Some thunder is also possible. High near 36. West wind 11 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers, mainly before midnight. Some thunder is also possible. Low around 17. North northwest wind 8 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

    Low: 17 °F

    Snow Showers
    then Chance
    Snow Showers

  • Friday

    Friday: Snow showers. High near 30. North northwest wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    High: 30 °F

    Snow Showers

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow showers, mainly after noon. Some thunder is also possible. Mostly sunny, with a high near 35.

    High: 35 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 63. Breezy, with a south southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Tonight
Isolated showers between 2am and 3am. Snow level 10500 feet lowering to 8300 feet after midnight . Partly cloudy, with a low around 36. Breezy, with a south wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain and snow showers before noon, then snow showers likely. Some thunder is also possible. Snow level 8000 feet lowering to 7400 feet in the afternoon . Increasing clouds, with a high near 46. Breezy, with a southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
Snow showers. Low around 28. Breezy, with a southwest wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow showers. Some thunder is also possible. High near 36. West wind 11 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow showers, mainly before midnight. Some thunder is also possible. Low around 17. North northwest wind 8 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Friday
Snow showers. High near 30. North northwest wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 12.
Saturday
A 30 percent chance of snow showers, mainly after noon. Some thunder is also possible. Mostly sunny, with a high near 35.
Saturday Night
A 20 percent chance of snow showers. Partly cloudy, with a low around 17.
Sunday
A chance of snow showers. 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. Mostly sunny, with a high near 42.
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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:
7:03 am MDT Apr 21, 2026
Forecast Valid:
8am MDT Apr 21, 2026-6pm MDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation