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Winter Weather in the Eastern U.S.; Fire Weather in the Southern High Plains

A wintry mix may impact travel across portions of the Ohio Valley, central Appalachians, Mid-Atlantic, and Northeast U.S. today through Tuesday. Gusty winds and low relative humidity will bring elevated to critical fire weather to northeastern New Mexico and southeastern Colorado today and Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

40°F

4°C

Humidity 65%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 02 Mar 10:15 AM MST
Extended Forecast for

Mammoth WY

  • Today

    Today: A chance of rain and snow, mainly after 1pm. Mostly cloudy, with a high near 48. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Northwest wind around 6 mph becoming calm in the evening.

    Low: 27 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 51. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 32. South wind around 9 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A chance of rain and snow showers between 11am and 2pm, then a chance of rain showers after 2pm. Snow level rising to 6700 feet in the afternoon. Mostly cloudy, with a high near 47. South southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 47 °F

    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow showers. Snow level 6900 feet lowering to 6000 feet after midnight . Low around 33. South southwest wind 6 to 10 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 33 °F

    Rain/Snow

  • Thursday

    Thursday: Snow showers likely, mainly before 11am. Mostly cloudy, with a high near 41. North northwest wind 7 to 9 mph. Chance of precipitation is 70%.

    High: 41 °F

    Snow Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: A 20 percent chance of snow showers. Partly sunny, with a high near 41.

    High: 41 °F

    Slight Chance
    Snow Showers

Detailed Forecast

Today
A chance of rain and snow, mainly after 1pm. Mostly cloudy, with a high near 48. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 51. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 32. South wind around 9 mph.
Wednesday
A chance of rain and snow showers between 11am and 2pm, then a chance of rain showers after 2pm. Snow level rising to 6700 feet in the afternoon. Mostly cloudy, with a high near 47. South southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow showers. Snow level 6900 feet lowering to 6000 feet after midnight . Low around 33. South southwest wind 6 to 10 mph becoming northwest after midnight. Chance of precipitation is 80%.
Thursday
Snow showers likely, mainly before 11am. Mostly cloudy, with a high near 41. North northwest wind 7 to 9 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 25.
Friday
A 20 percent chance of snow showers. Partly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 25.
Saturday
A slight chance of snow showers. Mostly sunny, with a high near 42.
Saturday Night
A slight chance of rain and snow showers. Snow level 5800 feet. Mostly cloudy, with a low around 33.
Sunday
A chance of rain and snow showers. Snow level 5800 feet. Partly sunny, with a high near 45. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
8:01 am MST Mar 2, 2026
Forecast Valid:
10am MST Mar 2, 2026-6pm MDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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