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

21°F

-6°C

Humidity 67%
Wind Speed NNW 4 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 18 Jan 11:35 PM PST
Extended Forecast for

9 Miles SE Mammoth Lakes CA

  • Tonight

    Tonight: Partly cloudy, with a low around 21. Northwest wind around 10 mph.

    Low: 21 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 38. North wind 10 to 15 mph.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Northwest wind 5 to 10 mph becoming west in the evening.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 37. West wind around 10 mph.

    High: 37 °F

    Sunny

  • Tuesday Night

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

    Low: 20 °F

    Partly Cloudy

  • Wednesday

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

    High: 38 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 21. Northwest wind around 10 mph.
M.L.King Day
Sunny, with a high near 38. North wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 19. Northwest wind 5 to 10 mph becoming west in the evening.
Tuesday
Sunny, with a high near 37. West wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 20. West wind around 10 mph.
Wednesday
Partly sunny, with a high near 38. West wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 34.
Thursday Night
Mostly clear, with a low around 19.
Friday
Sunny, with a high near 33.
Friday Night
Mostly clear, with a low around 17.
Saturday
Sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
Mostly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SE Mammoth Lakes CA
 37.54°N 118.89°W (Elev. 10719 ft)
9:15 pm PST Jan 18, 2026
11pm PST Jan 18, 2026-6pm PST Jan 25, 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