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: Mostly cloudy, with a low around 17. South wind 5 to 10 mph.

    Low: 17 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly cloudy, with a high near 32. North wind 5 to 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 17. West wind 5 to 10 mph.

    Low: 17 °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 11. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 11 °F

    Partly Cloudy
    and Blustery

  • 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 7. Blustery.

    Low: 7 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 33. Southwest wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 17. South wind 5 to 10 mph.
Thursday
A 20 percent chance of snow after 10am. Mostly cloudy, with a high near 32. North wind 5 to 10 mph.
Thursday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 17. West wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 30. Northwest wind around 10 mph.
Friday Night
Partly cloudy, with a low around 11. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 24. Blustery.
Saturday Night
Mostly clear, with a low around 7. Blustery.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SE Mammoth Lakes CA
 37.56°N 118.87°W (Elev. 11175 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

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Hourly Weather Forecast

National Digital Forecast Database