National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Clear

23°F

-5°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 02 Jan 12:55 AM PST
Extended Forecast for

10 Miles ESE Mammoth Lakes CA

Winter Storm Warning January 3, 12:00am until January 5, 10:00am
Click here for hazard details and duration
Winter Storm Warning

  • Overnight

    Overnight: Partly cloudy, with a low around 21. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 40. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 40 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Snow likely, mainly after 4am. Increasing clouds, with a low around 23. Windy, with a southwest wind 30 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Windy. Chance
    Snow then
    Snow Likely

  • Saturday

    Saturday: Snow. The snow could be heavy at times. High near 36. Windy, with a south wind around 35 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 36 °F

    Heavy Snow
    and Windy

  • Saturday Night

    Saturday Night: Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 23. Very windy, with a southwest wind 35 to 45 mph, with gusts as high as 65 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 23 °F

    Heavy Snow
    and Very
    Windy

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 33. Windy, with a southwest wind around 35 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.

    High: 33 °F

    Heavy Snow
    and Windy

  • Sunday Night

    Sunday Night: Snow, mainly before 4am. The snow could be heavy at times. Low around 18. Windy. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 18 °F

    Heavy Snow
    and Windy

  • Monday

    Monday: Snow likely, mainly after 10am. Partly sunny, with a high near 32. Breezy.

    High: 32 °F

    Snow Likely
    and Breezy

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 21. Southwest wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 40. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
Snow likely, mainly after 4am. Increasing clouds, with a low around 23. Windy, with a southwest wind 30 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Snow. The snow could be heavy at times. High near 36. Windy, with a south wind around 35 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 23. Very windy, with a southwest wind 35 to 45 mph, with gusts as high as 65 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Sunday
Snow. The snow could be heavy at times. High near 33. Windy, with a southwest wind around 35 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.
Sunday Night
Snow, mainly before 4am. The snow could be heavy at times. Low around 18. Windy. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Monday
Snow likely, mainly after 10am. Partly sunny, with a high near 32. Breezy.
Monday Night
A chance of snow. Mostly cloudy, with a low around 15.
Tuesday
A chance of snow. Partly sunny, with a high near 32.
Tuesday Night
A slight chance of snow. Partly cloudy, with a low around 16.
Wednesday
A chance of snow. Mostly sunny, with a high near 34.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 13. Windy.
Thursday
A chance of snow. Partly sunny, with a high near 29. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Mammoth Lakes CA
 37.57°N 118.81°W (Elev. 10469 ft)
Last Update:
9:15 pm PST Jan 1, 2026
Forecast Valid:
1am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation