Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. 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 W 2 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 02 Mar 06:15 PM MST
Extended Forecast for

Mammoth WY

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. West wind around 5 mph becoming calm  in the evening.

    Low: 27 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 50. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30. South southeast wind around 9 mph.

    Low: 30 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48. South southwest wind 8 to 11 mph, with gusts as high as 26 mph.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain showers before 11pm, then rain and snow showers likely.  Snow level 6800 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 33. South southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Snow showers.  High near 42. North northwest wind 7 to 9 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%.

    High: 42 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 11pm, then a chance of snow showers.  Mostly cloudy, with a low around 27. North northwest wind 6 to 8 mph.  Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday

    Friday: A 30 percent chance of snow showers.  Partly sunny, with a high near 41.

    High: 41 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 50. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 30. South southeast wind around 9 mph.
Wednesday
Partly sunny, with a high near 48. South southwest wind 8 to 11 mph, with gusts as high as 26 mph.
Wednesday Night
A chance of rain showers before 11pm, then rain and snow showers likely. Snow level 6800 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 33. South southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Snow showers. High near 42. North northwest wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Thursday Night
A chance of rain and snow showers before 11pm, then a chance of snow showers. Mostly cloudy, with a low around 27. North northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday
A 30 percent chance of snow showers. Partly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
A slight chance of snow showers. Mostly cloudy, with a low around 32.
Sunday
A slight chance of rain and snow showers. Snow level rising to 6400 feet in the afternoon. Mostly sunny, with a high near 47. Breezy.
Sunday Night
A chance of showers. Snow level 6400 feet. Mostly cloudy, with a low around 34. Breezy.
Monday
A chance of rain and snow showers. Mostly cloudy, with a high near 44. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
6:17 pm MST Mar 2, 2026
6pm MST Mar 2, 2026-6pm MDT Mar 9, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database