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 74%
Wind Speed N 0 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 20 Jan 01:55 PM PST
Extended Forecast for

6 Miles SE Mammoth Lakes CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 39. West wind around 10 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. West wind around 10 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 39. Southwest wind 5 to 10 mph.

    High: 39 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after 10pm.  Mostly cloudy, with a low around 25. Southwest wind 5 to 10 mph.

    Low: 25 °F

    Slight Chance
    Snow

  • Thursday

    Thursday: A 30 percent chance of snow, mainly between 10am and 4pm.  Mostly cloudy, with a high near 35. North wind around 10 mph.  New snow accumulation of less than a half inch possible.

    High: 35 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before 10pm.  Mostly cloudy, with a low around 23. Northwest wind around 10 mph.

    Low: 23 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 26. Blustery.

    High: 26 °F

    Sunny and
    Blustery

Detailed Forecast

This Afternoon
Partly sunny, with a high near 39. West wind around 10 mph.
Tonight
Mostly cloudy, with a low around 27. West wind around 10 mph.
Wednesday
Mostly cloudy, with a high near 39. Southwest wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 25. Southwest wind 5 to 10 mph.
Thursday
A 30 percent chance of snow, mainly between 10am and 4pm. Mostly cloudy, with a high near 35. North wind around 10 mph. New snow accumulation of less than a half inch possible.
Thursday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 23. Northwest wind around 10 mph.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 15.
Saturday
Sunny, with a high near 26. Blustery.
Saturday Night
Mostly clear, with a low around 13.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Mammoth Lakes CA
 37.58°N 118.9°W (Elev. 10617 ft)
1:15 pm PST Jan 20, 2026
2pm PST Jan 20, 2026-6pm PST Jan 26, 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