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

Heavy Snow in the Northwest; Wintry Mix from the Great Lakes to Northeast

Two cold fronts will pass through the Northwest U.S. this week with the main impact being heavy mountain snow across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain to the Upper Midwest and Great Lakes today then the Northeast U.S. tonight into Wednesday. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Clear

23°F

-5°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 06 Jan 01:35 PM PST
Extended Forecast for

8 Miles ENE Mammoth Lakes CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 37. Calm wind.

    High: 37 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 14. Calm wind becoming west around 5 mph.

    Low: 14 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. West wind around 5 mph.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 10 percent chance of snow after 4am. Mostly clear, with a low around 11. West wind around 15 mph, with gusts as high as 25 mph.

    Low: 11 °F

    Mostly Clear
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before 10am. Sunny, with a high near 29. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 29 °F

    Slight Chance
    Snow then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 7. West wind around 5 mph.

    Low: 7 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 37. Calm wind.
Tonight
Partly cloudy, with a low around 14. Calm wind becoming west around 5 mph.
Wednesday
Mostly sunny, with a high near 38. West wind around 5 mph.
Wednesday Night
A 10 percent chance of snow after 4am. Mostly clear, with a low around 11. West wind around 15 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of snow before 10am. Sunny, with a high near 29. Northwest wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 7. West wind around 5 mph.
Friday
Sunny, with a high near 37.
Friday Night
Mostly clear, with a low around 13.
Saturday
Sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ENE Mammoth Lakes CA
 37.68°N 118.83°W (Elev. 7047 ft)
Last Update:
1:15 pm PST Jan 6, 2026
Forecast Valid:
1pm PST Jan 6, 2026-6pm PST Jan 12, 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