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

Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

16°F

-9°C

Humidity 66%
Wind Speed W 9 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 12 Feb 05:55 AM PST
Extended Forecast for

4 Miles E Mammoth Lakes CA

  • Today

    Today: A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 36. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 36 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 13. West wind around 5 mph.

    Low: 13 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 40. Calm wind.

    High: 40 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 18. Calm wind becoming southwest around 5 mph.

    Low: 18 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 44. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of snow after 10am. Mostly sunny, with a high near 40.

    High: 40 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A chance of snow. Increasing clouds, with a low around 18.

    Low: 18 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Snow. The snow could be heavy at times. Cloudy, with a high near 32.

    High: 32 °F

    Heavy Snow

Detailed Forecast

Today
A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 36. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 13. West wind around 5 mph.
Friday
Sunny, with a high near 40. Calm wind.
Friday Night
Mostly clear, with a low around 18. Calm wind becoming southwest around 5 mph.
Saturday
Mostly sunny, with a high near 44. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph.
Sunday
A 20 percent chance of snow after 10am. Mostly sunny, with a high near 40.
Sunday Night
A chance of snow. Increasing clouds, with a low around 18.
Washington's Birthday
Snow. The snow could be heavy at times. Cloudy, with a high near 32.
Monday Night
Snow. Cloudy, with a low around 15.
Tuesday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 29.
Tuesday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 10.
Wednesday
A chance of snow. Partly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Mammoth Lakes CA
 37.65°N 118.88°W (Elev. 7480 ft)
Last Update:
1:53 am PST Feb 12, 2026
Forecast Valid:
6am PST Feb 12, 2026-6pm PST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

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