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.

freezing fog

14°F

-10°C

Humidity 92%
Wind Speed N 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 12°F (-11°C)
Visibility -0.25 mi
Wind Chill7°F (-14°C)
Last update 02 Jan 05:55 AM PST
Extended Forecast for

12 Miles ENE 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

  • Today

    Today: Patchy freezing fog before 8am. Mostly sunny, with a high near 42. Calm wind becoming east around 5 mph in the morning.

    High: 42 °F

    Patchy
    Freezing Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 20. East wind around 5 mph. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Rain and snow likely before 10am, then rain between 10am and 1pm, then rain and snow after 1pm. Snow level 7600 feet. High near 41. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 22. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 22 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Sunday

    Sunday: Snow. High near 39. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 39 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 15. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 15 °F

    Snow Likely
    then Chance
    Snow

  • Monday

    Monday: A 50 percent chance of snow. Partly sunny, with a high near 39. Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of snow. Mostly sunny, with a high near 39.

    High: 39 °F

    Slight Chance
    Snow

Detailed Forecast

Today
Patchy freezing fog before 8am. Mostly sunny, with a high near 42. Calm wind becoming east around 5 mph in the morning.
Tonight
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 20. East wind around 5 mph. New snow accumulation of less than a half inch possible.
Saturday
Rain and snow likely before 10am, then rain between 10am and 1pm, then rain and snow after 1pm. Snow level 7600 feet. High near 41. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Saturday Night
Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 22. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Sunday
Snow. High near 39. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Sunday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 15. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Monday
A 50 percent chance of snow. Partly sunny, with a high near 39. Little or no snow accumulation expected.
Monday Night
A chance of snow. Mostly cloudy, with a low around 12.
Tuesday
A slight chance of snow. Mostly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
A chance of snow. Partly sunny, with a high near 38.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 8.
Thursday
A chance of snow. Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ENE Mammoth Lakes CA
 37.69°N 118.75°W (Elev. 6824 ft)
Last Update:
5:31 am PST Jan 2, 2026
Forecast Valid:
6am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation