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

4 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 40. Light and variable wind becoming northeast 5 to 10 mph in the morning.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely, mainly after 4am. Partly cloudy, with a low around 25. South wind around 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Partly Cloudy
    then Snow
    Likely

  • Saturday

    Saturday: Snow before 10am, then rain and snow between 10am and 1pm, then snow after 1pm. High near 38. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 38 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly after 4am. Mostly cloudy, with a low around 27. 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: 27 °F

    Snow Likely

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 36. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    High: 36 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 20. 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: 20 °F

    Snow Likely

  • Monday

    Monday: A 50 percent chance of snow. Partly sunny, with a high near 35. New snow accumulation of around an inch possible.

    High: 35 °F

    Chance Snow

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of snow. Mostly sunny, with a high near 37.

    High: 37 °F

    Slight Chance
    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 40. Light and variable wind becoming northeast 5 to 10 mph in the morning.
Tonight
Snow likely, mainly after 4am. Partly cloudy, with a low around 25. South wind around 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Snow before 10am, then rain and snow between 10am and 1pm, then snow after 1pm. High near 38. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow likely, mainly after 4am. Mostly cloudy, with a low around 27. 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 36. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Sunday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 20. 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 35. New snow accumulation of around an inch possible.
Monday Night
A chance of snow. Mostly cloudy, with a low around 16.
Tuesday
A slight chance of snow. Mostly sunny, with a high near 37.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
A chance of snow. Partly sunny, with a high near 35.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 11.
Thursday
A chance of snow. Mostly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Mammoth Lakes CA
 37.67°N 118.89°W (Elev. 7671 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

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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