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

18°F

-8°C

Humidity 72%
Wind Speed NNW 4 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 20 Jan 09:35 PM PST
Extended Forecast for

6 Miles SE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Southwest 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. Northwest wind 5 to 10 mph.

    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

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. Southwest 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. Northwest wind 5 to 10 mph.
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.
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 SE Mammoth Lakes CA
 37.58°N 118.9°W (Elev. 10617 ft)
9:15 pm PST Jan 20, 2026
9pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

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