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

27°F

-3°C

Humidity 53%
Wind Speed NNW 5 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 19 Jan 01:55 AM PST
Extended Forecast for

8 Miles ENE Mammoth Lakes CA

  • Overnight

    Overnight: Partly cloudy, with a low around 14. Calm wind.

    Low: 14 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 41. Calm wind becoming northwest around 5 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. Calm wind.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. Calm wind.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16. Calm wind.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

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

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 14. Calm wind.
M.L.King Day
Sunny, with a high near 41. Calm wind becoming northwest around 5 mph.
Monday Night
Mostly clear, with a low around 13. Calm wind.
Tuesday
Mostly sunny, with a high near 42. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 16. Calm wind.
Wednesday
Partly sunny, with a high near 50. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 18.
Saturday
Sunny, with a high near 44.
Saturday Night
Mostly clear, with a low around 17.
Sunday
Mostly sunny, with a high near 45.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ENE Mammoth Lakes CA
 37.68°N 118.83°W (Elev. 7047 ft)
1:15 am PST Jan 19, 2026
2am PST Jan 19, 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