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

Severe Thunderstorms and Heavy Rain Across the Central US; Wintry Mix in the Northern Plains and Northeast

Severe thunderstorms and flash flooding are possible across the central U.S. through Saturday. Large hail, damaging winds, and tornadoes are all possible. There is an increased threat for wildfire development in the southern to central High Plains. A wintry mix of snow, sleet and freezing rain are forecast across portions of the northern Plains and central New England into early Friday morning. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

31°F

-1°C

Humidity 96%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 05 Mar 06:15 PM MST
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Snow showers likely, mainly before 3am. Mostly cloudy, with a low around 24. Northwest wind 8 to 11 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Friday

    Friday: A 30 percent chance of snow showers, mainly between 3pm and 4pm. Mostly sunny, with a high near 40. North northwest wind 6 to 8 mph. Little or no snow accumulation expected.

    High: 40 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23. West wind around 6 mph becoming south southwest after midnight.

    Low: 23 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 43. Southwest wind 7 to 11 mph, with gusts as high as 25 mph.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. South southwest wind around 10 mph, with gusts as high as 23 mph.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 47. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 33 mph.

    High: 47 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 38. Breezy, with a south southwest wind around 16 mph, with gusts as high as 33 mph.

    Low: 38 °F

    Slight Chance
    Showers and
    Breezy

  • Monday

    Monday: A 40 percent chance of showers. Snow level 6500 feet. Partly sunny, with a high near 49. Breezy.

    High: 49 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain and snow showers likely before 11pm, then a chance of snow showers. Some thunder is also possible. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 60%.

    Low: 28 °F

    Rain/Snow
    Likely and
    Breezy then
    Chance Snow
    Showers

Detailed Forecast

Tonight
Snow showers likely, mainly before 3am. Mostly cloudy, with a low around 24. Northwest wind 8 to 11 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.
Friday
A 30 percent chance of snow showers, mainly between 3pm and 4pm. Mostly sunny, with a high near 40. North northwest wind 6 to 8 mph. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 23. West wind around 6 mph becoming south southwest after midnight.
Saturday
Partly sunny, with a high near 43. Southwest wind 7 to 11 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 33. South southwest wind around 10 mph, with gusts as high as 23 mph.
Sunday
Partly sunny, with a high near 47. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 33 mph.
Sunday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 38. Breezy, with a south southwest wind around 16 mph, with gusts as high as 33 mph.
Monday
A 40 percent chance of showers. Snow level 6500 feet. Partly sunny, with a high near 49. Breezy.
Monday Night
Rain and snow showers likely before 11pm, then a chance of snow showers. Some thunder is also possible. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of snow showers. Partly sunny, with a high near 39. Breezy.
Tuesday Night
A slight chance of snow showers. Mostly cloudy, with a low around 20.
Wednesday
A slight chance of snow showers. Mostly sunny, with a high near 39. Breezy.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 32. Breezy.
Thursday
A chance of snow showers. Partly sunny, with a high near 46. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
7:02 pm MST Mar 5, 2026
Forecast Valid:
7pm MST Mar 5, 2026-6pm MDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation