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 N 0 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 19 Jan 08:55 PM PST
Extended Forecast for

6 Miles SE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly clear, with a low around 24. Southwest wind 5 to 10 mph.

    Low: 24 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. West wind around 10 mph.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26. West wind around 10 mph.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 40. West wind 10 to 15 mph.

    High: 40 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26. West wind around 5 mph.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly cloudy, with a high near 33. Northwest wind 10 to 15 mph.

    High: 33 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 16. Blustery.

    Low: 16 °F

    Mostly Clear
    and Blustery

Detailed Forecast

Tonight
Mostly clear, with a low around 24. Southwest wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 39. West wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 26. West wind around 10 mph.
Wednesday
Mostly cloudy, with a high near 40. West wind 10 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 26. West wind around 5 mph.
Thursday
A 20 percent chance of snow after 10am. Mostly cloudy, with a high near 33. Northwest wind 10 to 15 mph.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 32.
Friday Night
Mostly clear, with a low around 16. Blustery.
Saturday
Sunny, with a high near 31.
Saturday Night
Mostly clear, with a low around 18.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Partly cloudy, with a low around 22.
Monday
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 19, 2026
9pm PST Jan 19, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database