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

36°F

2°C

Humidity 51%
Wind Speed N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 12 Feb 04:15 PM PST
Extended Forecast for

6 Miles ESE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly clear, with a low around 9. Northwest wind around 5 mph becoming calm in the evening.

    Low: 9 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 35. Calm wind.

    High: 35 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 13. Calm wind.

    Low: 13 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 39. South wind 5 to 15 mph.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 16. Southwest wind 10 to 15 mph.

    Low: 16 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 10 percent chance of snow after 4pm. Mostly sunny, with a high near 36. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 36 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly after 4am. Mostly cloudy, with a low around 15. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 15 °F

    Snow Likely

  • Washington's Birthday

    Washington's Birthday: Snow. The snow could be heavy at times. Cloudy, with a high near 28.

    High: 28 °F

    Heavy Snow

  • Monday Night

    Monday Night: Snow. Cloudy, with a low around 15.

    Low: 15 °F

    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 9. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 35. Calm wind.
Friday Night
Partly cloudy, with a low around 13. Calm wind.
Saturday
Mostly sunny, with a high near 39. South wind 5 to 15 mph.
Saturday Night
Mostly cloudy, with a low around 16. Southwest wind 10 to 15 mph.
Sunday
A 10 percent chance of snow after 4pm. Mostly sunny, with a high near 36. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Snow likely, mainly after 4am. Mostly cloudy, with a low around 15. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Washington's Birthday
Snow. The snow could be heavy at times. Cloudy, with a high near 28.
Monday Night
Snow. Cloudy, with a low around 15.
Tuesday
Snow. The snow could be heavy at times. Cloudy, with a high near 24. Breezy.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 7.
Wednesday
A chance of snow. Partly sunny, with a high near 25.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 7.
Thursday
Snow likely. Mostly cloudy, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Mammoth Lakes CA
 37.63°N 118.85°W (Elev. 7152 ft)
Last Update:
1:16 pm PST Feb 12, 2026
Forecast Valid:
4pm PST Feb 12, 2026-6pm PST Feb 19, 2026
 
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Additional Resources

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Chance of Precipitation