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.

Overcast

30°F

-1°C

Humidity 74%
Wind Speed N 0 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 12 Feb 12:35 PM PST
Extended Forecast for

10 Miles ESE Mammoth Lakes CA

  • This Afternoon

    This Afternoon: A 20 percent chance of snow after 1pm. Mostly sunny, with a high near 32. North wind around 10 mph.

    High: 32 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: Mostly clear, with a low around 13. West wind around 10 mph.

    Low: 13 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 37. North wind 5 to 10 mph.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 19. Southwest wind around 10 mph.

    Low: 19 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 41 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19. Windy, with a southwest wind around 30 mph, with gusts as high as 40 mph.

    Low: 19 °F

    Mostly Cloudy
    and Windy

  • Sunday

    Sunday: A 20 percent chance of snow after 10am. Mostly sunny, with a high near 37. Breezy.

    High: 37 °F

    Slight Chance
    Snow and
    Breezy

  • Sunday Night

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

    Low: 17 °F

    Chance Snow
    and Breezy

  • Washington's Birthday

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

    High: 30 °F

    Heavy Snow
    and Breezy

Detailed Forecast

This Afternoon
A 20 percent chance of snow after 1pm. Mostly sunny, with a high near 32. North wind around 10 mph.
Tonight
Mostly clear, with a low around 13. West wind around 10 mph.
Friday
Sunny, with a high near 37. North wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 19. Southwest wind around 10 mph.
Saturday
Mostly sunny, with a high near 41. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Saturday Night
Mostly cloudy, with a low around 19. Windy, with a southwest wind around 30 mph, with gusts as high as 40 mph.
Sunday
A 20 percent chance of snow after 10am. Mostly sunny, with a high near 37. Breezy.
Sunday Night
A chance of snow, mainly after 10pm. Increasing clouds, with a low around 17. Breezy.
Washington's Birthday
Snow. The snow could be heavy at times. Cloudy, with a high near 30. Breezy.
Monday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 15. Windy.
Tuesday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 26. Very windy.
Tuesday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 10. Windy.
Wednesday
A chance of snow. Partly sunny, with a high near 27. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Mammoth Lakes CA
 37.57°N 118.81°W (Elev. 10469 ft)
Last Update:
11:32 am PST Feb 12, 2026
Forecast Valid:
12pm PST Feb 12, 2026-6pm PST Feb 18, 2026
 
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Additional Resources

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Chance of Precipitation