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

37°F

3°C

Humidity 40%
Wind Speed W 4 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 16°F (-9°C)
Visibility 7.00 mi
Wind Chill34°F (1°C)
Last update 12 Feb 02:35 PM PST
Extended Forecast for

12 Miles SE Mammoth Lakes CA

  • This Afternoon

    This Afternoon: A 20 percent chance of snow. Mostly sunny, with a high near 20. Northeast wind around 10 mph.

    High: 20 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: Partly cloudy, with a low around 6. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 6 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 25. North wind 5 to 10 mph.

    High: 25 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12. Southwest wind 5 to 10 mph.

    Low: 12 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 27. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 27 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 12. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph.

    Low: 12 °F

    Mostly Cloudy
    and Windy

  • Sunday

    Sunday: A 10 percent chance of snow after 4pm. Mostly sunny, with a high near 24. Breezy.

    High: 24 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly after 4am. The snow could be heavy at times. Mostly cloudy, with a low around 11. Breezy.

    Low: 11 °F

    Heavy Snow
    and Breezy

  • Washington's Birthday

    Washington's Birthday: Snow. The snow could be heavy at times. Cloudy, with a high near 19. Windy.

    High: 19 °F

    Heavy Snow
    and Windy

Detailed Forecast

This Afternoon
A 20 percent chance of snow. Mostly sunny, with a high near 20. Northeast wind around 10 mph.
Tonight
Partly cloudy, with a low around 6. Northeast wind around 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 25. North wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 12. Southwest wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 27. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Saturday Night
Mostly cloudy, with a low around 12. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph.
Sunday
A 10 percent chance of snow after 4pm. Mostly sunny, with a high near 24. Breezy.
Sunday Night
Snow likely, mainly after 4am. The snow could be heavy at times. Mostly cloudy, with a low around 11. Breezy.
Washington's Birthday
Snow. The snow could be heavy at times. Cloudy, with a high near 19. Windy.
Monday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 10. Very windy.
Tuesday
Snow. The snow could be heavy at times. Cloudy, with a high near 13. Very windy.
Tuesday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 4. Very windy.
Wednesday
A chance of snow. Partly sunny, with a high near 15. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SE Mammoth Lakes CA
 37.5°N 118.85°W (Elev. 11572 ft)
Last Update:
1:16 pm PST Feb 12, 2026
Forecast Valid:
2pm PST Feb 12, 2026-6pm PST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation