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.

Partly Cloudy

18°F

-8°C

Humidity 78%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 21 Jan 02:55 AM PST
Extended Forecast for

9 Miles SE Mammoth Lakes CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 17. Southwest wind around 10 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

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

    High: 33 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: 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.

    Low: 11 °F

    Partly Cloudy
    then 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

Detailed Forecast

Overnight
Mostly cloudy, with a low around 17. Southwest wind around 10 mph.
Wednesday
Mostly cloudy, with a high near 33. Southwest wind 5 to 10 mph.
Wednesday Night
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.
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)
1:15 am PST Jan 21, 2026
3am 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