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

Top Stn/Summit (MTH03)

Lat: 37.63059°NLon: 119.03282°WElev: 11034.0ft.

NA

29°F

-2°C

Humidity 34%
Wind Speed SSW 26 MPH
Barometer NA
Dewpoint 5°F (-15°C)
Visibility NA
Wind Chill14°F (-10°C)
Last update 21 Jan 05:05 AM PST
Extended Forecast for

2 Miles SW Mammoth Lakes CA

  • Today

    Today: Mostly cloudy, with a high near 44. Southwest wind around 5 mph.

    High: 44 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Southwest wind around 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly cloudy, with a high near 41. North wind around 5 mph.

    High: 41 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before 10pm.  Mostly cloudy, with a low around 25. West wind around 5 mph.

    Low: 25 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 34. West wind around 5 mph.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 18. North wind around 10 mph, with gusts as high as 25 mph.

    Low: 18 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 44. Southwest wind around 5 mph.
Tonight
Mostly cloudy, with a low around 30. Southwest wind around 5 mph.
Thursday
A 20 percent chance of snow after 10am. Mostly cloudy, with a high near 41. North wind around 5 mph.
Thursday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 25. West wind around 5 mph.
Friday
Mostly sunny, with a high near 34. West wind around 5 mph.
Friday Night
Partly cloudy, with a low around 18. North wind around 10 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 27.
Saturday Night
Mostly clear, with a low around 16.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 35.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Mammoth Lakes CA
 37.61°N 119.02°W (Elev. 9347 ft)
1:15 am PST Jan 21, 2026
5am 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