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

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

25°F

-4°C

Humidity 73%
Wind Speed ESE 3 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 21 Jan 09:55 AM PST
Extended Forecast for

6 Miles ESE Mammoth Lakes CA

  • Today

    Today: Mostly cloudy, with a high near 41. Southwest wind 5 to 10 mph.

    High: 41 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. South wind around 5 mph.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly cloudy, with a high near 37. Northwest wind 5 to 10 mph.

    High: 37 °F

    Slight Chance
    Snow

  • Thursday Night

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

    Low: 22 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32. Northwest wind around 10 mph.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 16. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 16 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Blustery

  • Saturday

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

    High: 26 °F

    Sunny and
    Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 12. Blustery.

    Low: 12 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 41. Southwest wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 25. South wind around 5 mph.
Thursday
A 20 percent chance of snow after 10am. Mostly cloudy, with a high near 37. Northwest wind 5 to 10 mph.
Thursday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 22. West wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 32. Northwest wind around 10 mph.
Friday Night
Partly cloudy, with a low around 16. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 26. Blustery.
Saturday Night
Mostly clear, with a low around 12. Blustery.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Mammoth Lakes CA
 37.58°N 118.9°W (Elev. 10617 ft)
9:15 am PST Jan 21, 2026
10am PST Jan 21, 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