Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

28°F

-2°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 20 Jan 04:55 PM PST
Extended Forecast for

9 Miles ESE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. Southwest wind around 10 mph.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 38. Southwest wind 5 to 10 mph.

    High: 38 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after 10pm.  Mostly cloudy, with a low around 22. West wind 5 to 10 mph.

    Low: 22 °F

    Slight Chance
    Snow

  • Thursday

    Thursday: A 30 percent chance of snow, mainly between 10am and 4pm.  Mostly cloudy, with a high near 34. Northwest wind around 10 mph becoming north in the afternoon.  Little or no snow accumulation expected.

    High: 34 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before 10pm.  Mostly cloudy, with a low around 19. West wind around 10 mph.

    Low: 19 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 30. Northwest wind around 10 mph.

    High: 30 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 24. Blustery.

    High: 24 °F

    Sunny and
    Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 22. Southwest wind around 10 mph.
Wednesday
Mostly cloudy, with a high near 38. Southwest wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 22. West wind 5 to 10 mph.
Thursday
A 30 percent chance of snow, mainly between 10am and 4pm. Mostly cloudy, with a high near 34. Northwest wind around 10 mph becoming north in the afternoon. Little or no snow accumulation expected.
Thursday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 19. West wind around 10 mph.
Friday
Mostly sunny, with a high near 30. Northwest wind around 10 mph.
Friday Night
Partly cloudy, with a low around 10.
Saturday
Sunny, with a high near 24. Blustery.
Saturday Night
Mostly clear, with a low around 8.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ESE Mammoth Lakes CA
 37.56°N 118.87°W (Elev. 11175 ft)
1:15 pm PST Jan 20, 2026
5pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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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