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

18°F

-8°C

Humidity 61%
Wind Speed W 13 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 12 Feb 04:55 AM PST
Extended Forecast for

7 Miles SE Mammoth Lakes CA

  • Today

    Today: A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 24. Southwest wind 5 to 10 mph becoming northeast in the morning.

    High: 24 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 9. North wind 10 to 15 mph becoming south after midnight.

    Low: 9 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 29. Southeast wind around 10 mph becoming north in the morning.

    High: 29 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 15. Southwest wind 5 to 10 mph.

    Low: 15 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 32. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 32 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 14. Windy, with a southwest wind around 30 mph, with gusts as high as 45 mph.

    Low: 14 °F

    Mostly Cloudy
    and Windy

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after 4pm. Mostly sunny, with a high near 28. Breezy. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow
    and Breezy

  • Sunday Night

    Sunday Night: A chance of snow. The snow could be heavy at times. Mostly cloudy, with a low around 14. Breezy.

    Low: 14 °F

    Heavy Snow
    and Breezy

  • Washington's Birthday

    Washington's Birthday: Snow. The snow could be heavy at times. Cloudy, with a high near 22. Breezy.

    High: 22 °F

    Heavy Snow
    and Breezy

Detailed Forecast

Today
A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 24. Southwest wind 5 to 10 mph becoming northeast in the morning.
Tonight
Partly cloudy, with a low around 9. North wind 10 to 15 mph becoming south after midnight.
Friday
Sunny, with a high near 29. Southeast wind around 10 mph becoming north in the morning.
Friday Night
Mostly clear, with a low around 15. Southwest wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 32. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph.
Saturday Night
Mostly cloudy, with a low around 14. Windy, with a southwest wind around 30 mph, with gusts as high as 45 mph.
Sunday
A 30 percent chance of snow, mainly after 4pm. Mostly sunny, with a high near 28. Breezy. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of snow. The snow could be heavy at times. Mostly cloudy, with a low around 14. Breezy.
Washington's Birthday
Snow. The snow could be heavy at times. Cloudy, with a high near 22. Breezy.
Monday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 12. Windy.
Tuesday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 17. Very windy.
Tuesday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 7. Windy.
Wednesday
A chance of snow. The snow could be heavy at times. Partly sunny, with a high near 19. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SE Mammoth Lakes CA
 37.56°N 118.89°W (Elev. 10407 ft)
Last Update:
1:53 am PST Feb 12, 2026
Forecast Valid:
5am PST Feb 12, 2026-6pm PST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation