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

14°F

-10°C

Humidity 92%
Wind Speed N 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 12°F (-11°C)
Visibility 9.00 mi
Wind Chill7°F (-14°C)
Last update 02 Jan 06:55 AM PST
Extended Forecast for

7 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: Mostly sunny, with a high near 42. Light and variable wind becoming east 5 to 10 mph in the morning.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of snow after 1am, mixing with rain after 4am. Partly cloudy, with a low around 23. East wind around 10 mph becoming south after midnight. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Partly Cloudy
    then Chance
    Rain/Snow

  • Saturday

    Saturday: Rain, possibly mixed with snow. Snow level 7500 feet. High near 41. South 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: Snow likely, mainly after 4am. Mostly cloudy, with a low around 25. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 25 °F

    Snow Likely

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 39. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 39 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 18. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow Likely

  • Monday

    Monday: A 50 percent chance of snow. Partly sunny, with a high near 37. New snow accumulation of less than one inch possible.

    High: 37 °F

    Chance Snow

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 14.

    Low: 14 °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
Mostly sunny, with a high near 42. Light and variable wind becoming east 5 to 10 mph in the morning.
Tonight
A chance of snow after 1am, mixing with rain after 4am. Partly cloudy, with a low around 23. East wind around 10 mph becoming south after midnight. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Saturday
Rain, possibly mixed with snow. Snow level 7500 feet. High near 41. South 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
Snow likely, mainly after 4am. Mostly cloudy, with a low around 25. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday
Snow. The snow could be heavy at times. High near 39. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Sunday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 18. Southwest wind around 10 mph, with gusts as high as 20 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 37. New snow accumulation of less than one inch possible.
Monday Night
A chance of snow. Mostly cloudy, with a low around 14.
Tuesday
A slight chance of snow. Mostly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
A chance of snow. Partly sunny, with a high near 38.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 9.
Thursday
A chance of snow. Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Mammoth Lakes CA
 37.7°N 118.87°W (Elev. 7218 ft)
Last Update:
5:31 am PST Jan 2, 2026
Forecast Valid:
7am 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation