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

Above Average Temperatures for Most Today; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures are forecast today into Wednesday over most of the lower 48 states away from the Gulf Coast. A storm system passing across southern Canada will bring a wintry mix to the upper Great Lakes today. A trailing cold front will then bring the wintry mix from the central Appalachians through the Northeast U.S. Wednesday and Thursday. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

NA

32°F

0°C

Humidity 56%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill26°F (-3°C)
Last update 13 Jan 07:15 AM MST
Extended Forecast for

Mammoth WY

  • Today

    Today: Mostly sunny, with a high near 44. South southwest wind 3 to 6 mph.

    High: 44 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 25. South wind around 6 mph.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 45. Light south southeast wind.

    High: 45 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 20. South wind around 6 mph.

    Low: 20 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 44. Calm wind becoming west around 6 mph in the afternoon.

    High: 44 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 16. West northwest wind around 5 mph becoming calm after midnight.

    Low: 16 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 39. Calm wind.

    High: 39 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 44. South southwest wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 25. South wind around 6 mph.
Wednesday
Sunny, with a high near 45. Light south southeast wind.
Wednesday Night
Mostly clear, with a low around 20. South wind around 6 mph.
Thursday
Sunny, with a high near 44. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 16. West northwest wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 39. Calm wind.
Friday Night
Mostly clear, with a low around 16.
Saturday
Sunny, with a high near 41.
Saturday Night
Clear, with a low around 18.
Sunday
Sunny, with a high near 43.
Sunday Night
Clear, with a low around 18.
M.L.King Day
Sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
Last Update:
6:47 am MST Jan 13, 2026
Forecast Valid:
8am MST Jan 13, 2026-6pm MST Jan 19, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation