Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Clear

23°F

-5°C

Humidity 62%
Wind Speed WNW 3 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 19 Jan 09:35 PM PST
Extended Forecast for

9 Miles SE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly clear, with a low around 17. Southwest wind 5 to 10 mph.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. West wind 10 to 15 mph.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. Southwest wind around 10 mph.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 38. West wind 10 to 15 mph.

    High: 38 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21. West wind 5 to 10 mph.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly cloudy, with a high near 31. Northwest wind 10 to 15 mph.

    High: 31 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 31.

    High: 31 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 11. Blustery.

    Low: 11 °F

    Mostly Clear
    and Blustery

Detailed Forecast

Tonight
Mostly clear, with a low around 17. Southwest wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 36. West wind 10 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 20. Southwest wind around 10 mph.
Wednesday
Partly sunny, with a high near 38. West wind 10 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 21. West wind 5 to 10 mph.
Thursday
A 20 percent chance of snow after 10am. Mostly cloudy, with a high near 31. Northwest wind 10 to 15 mph.
Thursday Night
Mostly cloudy, with a low around 16.
Friday
Sunny, with a high near 31.
Friday Night
Mostly clear, with a low around 11. Blustery.
Saturday
Sunny, with a high near 28.
Saturday Night
Mostly clear, with a low around 13.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Partly cloudy, with a low around 17.
Monday
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 pm PST Jan 19, 2026
9pm PST Jan 19, 2026-6pm PST Jan 26, 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