National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

42°F

6°C

Humidity 58%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 14 Nov 04:15 PM MST
Extended Forecast for

Mammoth Hot Springs WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Breezy, with a south wind 8 to 15 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 41. South southwest wind 9 to 11 mph.

    High: 41 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 30. South southeast wind around 10 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 44. South southeast wind 8 to 13 mph.

    High: 44 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 32. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: A chance of snow showers before 11am, then snow showers, possibly mixed with rain. High near 40. South southeast wind around 6 mph. Chance of precipitation is 80%.

    High: 40 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow showers. Low around 26. South southwest wind 7 to 9 mph. Chance of precipitation is 90%.

    Low: 26 °F

    Snow Showers

  • Wednesday

    Wednesday: A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 32.

    High: 32 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Slight Chance
    Snow Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 30. Breezy, with a south wind 8 to 15 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 41. South southwest wind 9 to 11 mph.
Sunday Night
Increasing clouds, with a low around 30. South southeast wind around 10 mph.
Monday
Mostly cloudy, with a high near 44. South southeast wind 8 to 13 mph.
Monday Night
A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 32. South wind 6 to 9 mph, with gusts as high as 20 mph.
Tuesday
A chance of snow showers before 11am, then snow showers, possibly mixed with rain. High near 40. South southeast wind around 6 mph. Chance of precipitation is 80%.
Tuesday Night
Snow showers. Low around 26. South southwest wind 7 to 9 mph. Chance of precipitation is 90%.
Wednesday
A 20 percent chance of snow showers before 11am. Partly sunny, with a high near 32.
Wednesday Night
A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 22.
Thursday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 35.
Thursday Night
Snow showers likely. Mostly cloudy, with a low around 25.
Friday
A chance of snow showers. Mostly cloudy, with a high near 33.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 22.
Saturday
A slight chance of snow showers. Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Hot Springs WY
 44.96°N 110.72°W (Elev. 7185 ft)
Last Update:
5:01 pm MST Nov 14, 2026
Forecast Valid:
5pm MST Nov 14, 2026-6pm MST Nov 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation