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

14°F

-10°C

Humidity 78%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 12 Feb 06:55 AM PST
Extended Forecast for

10 Miles SE Mammoth Lakes CA

  • Today

    Today: A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 27. Southeast wind 5 to 10 mph becoming north in the afternoon.

    High: 27 °F

    Partly Sunny
    then Slight
    Chance Snow
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 14. Northwest wind 5 to 10 mph becoming southwest after midnight.

    Low: 14 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 32. Southwest wind around 5 mph becoming north in the afternoon.

    High: 32 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 20. Southwest wind around 5 mph.

    Low: 20 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 36. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 36 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.

    Low: 20 °F

    Mostly Cloudy
    and Breezy

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after 4pm. Mostly sunny, with a high near 31. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow. Increasing clouds, with a low around 19.

    Low: 19 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Snow. The snow could be heavy at times. Cloudy, with a high near 24. Breezy.

    High: 24 °F

    Heavy Snow
    and Breezy

Detailed Forecast

Today
A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 27. Southeast wind 5 to 10 mph becoming north in the afternoon.
Tonight
Mostly clear, with a low around 14. Northwest wind 5 to 10 mph becoming southwest after midnight.
Friday
Sunny, with a high near 32. Southwest wind around 5 mph becoming north in the afternoon.
Friday Night
Mostly clear, with a low around 20. Southwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 36. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 20. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.
Sunday
A 30 percent chance of snow, mainly after 4pm. Mostly sunny, with a high near 31. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of snow. Increasing clouds, with a low around 19.
Washington's Birthday
Snow. The snow could be heavy at times. Cloudy, with a high near 24. Breezy.
Monday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 16. Breezy.
Tuesday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 20. Windy.
Tuesday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 12. Breezy.
Wednesday
A chance of snow. Partly sunny, with a high near 22. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SE Mammoth Lakes CA
 37.54°N 118.83°W (Elev. 9216 ft)
Last Update:
1:53 am PST Feb 12, 2026
Forecast Valid:
7am PST Feb 12, 2026-6pm PST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation