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

12 Miles ESE Mammoth Lakes CA

  • Today

    Today: A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 33. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 33 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 12. West wind around 5 mph becoming calm.

    Low: 12 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 37. Calm wind.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 17. Calm wind.

    Low: 17 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 41. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 18. Southwest wind 5 to 10 mph.

    Low: 18 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of snow after 10am. Mostly cloudy, then gradually becoming sunny, with a high near 36.

    High: 36 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A chance of snow, mainly after 10pm. Increasing clouds, with a low around 17.

    Low: 17 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Snow. The snow could be heavy at times. Cloudy, with a high near 30.

    High: 30 °F

    Heavy Snow

Detailed Forecast

Today
A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 33. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 12. West wind around 5 mph becoming calm.
Friday
Sunny, with a high near 37. Calm wind.
Friday Night
Mostly clear, with a low around 17. Calm wind.
Saturday
Mostly sunny, with a high near 41. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 18. Southwest wind 5 to 10 mph.
Sunday
A 20 percent chance of snow after 10am. Mostly cloudy, then gradually becoming sunny, with a high near 36.
Sunday Night
A chance of snow, mainly after 10pm. Increasing clouds, with a low around 17.
Washington's Birthday
Snow. The snow could be heavy at times. Cloudy, with a high near 30.
Monday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 14.
Tuesday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 26.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 9.
Wednesday
A chance of snow. Partly sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Mammoth Lakes CA
 37.57°N 118.78°W (Elev. 7585 ft)
Last Update:
1:53 am PST Feb 12, 2026
Forecast Valid:
6am PST Feb 12, 2026-6pm PST Feb 18, 2026
 
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Additional Resources

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Chance of Precipitation