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 79%
Wind Speed N 0 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 21 Jan 10:55 AM PST
Extended Forecast for

9 Miles SE Mammoth Lakes CA

  • Today

    Today: Mostly cloudy, with a high near 33. Southwest wind 5 to 10 mph.

    High: 33 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy, with a low around 18. South wind around 5 mph.

    Low: 18 °F

    Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly cloudy, with a high near 32. North wind around 10 mph.

    High: 32 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before 10pm.  Mostly cloudy, with a low around 19. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 29. Northwest wind around 10 mph.

    High: 29 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 12 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 23. Blustery.

    High: 23 °F

    Sunny and
    Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 33. Southwest wind 5 to 10 mph.
Tonight
Cloudy, with a low around 18. South wind around 5 mph.
Thursday
A 20 percent chance of snow after 10am. Mostly cloudy, with a high near 32. North wind around 10 mph.
Thursday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 19. West wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 29. Northwest wind around 10 mph.
Friday Night
Partly cloudy, with a low around 12. Northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 23. Blustery.
Saturday Night
Mostly clear, with a low around 9.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SE Mammoth Lakes CA
 37.54°N 118.89°W (Elev. 10719 ft)
9:15 am PST Jan 21, 2026
11am 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