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 ESE Mammoth Lakes CA

  • Tonight

    Tonight: Partly cloudy, with a low around 17. Calm wind.

    Low: 17 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 47. Calm wind becoming northwest around 5 mph.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 17. Calm wind.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50. Calm wind.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 17. Calm wind.
M.L.King Day
Sunny, with a high near 47. Calm wind becoming northwest around 5 mph.
Monday Night
Mostly clear, with a low around 17. Calm wind.
Tuesday
Sunny, with a high near 50. Calm wind.
Tuesday Night
Partly cloudy, with a low around 21. Calm wind.
Wednesday
Mostly sunny, with a high near 50. Calm wind.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Mostly sunny, with a high near 46.
Thursday Night
Mostly clear, with a low around 22.
Friday
Sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 19.
Saturday
Sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ESE Mammoth Lakes CA
 37.61°N 118.82°W (Elev. 7201 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