Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

DW5868 Mammoth Lakes (D5868)

Lat: 37.625°NLon: 118.98°WElev: 7973.0ft.

NA

22°F

-6°C

Humidity 60%
Wind Speed W 0 MPH
Barometer 30.59 in (1035.9 mb)
Dewpoint 10°F (-12°C)
Visibility NA
Last update 29 Dec 10:15 PM PST
Extended Forecast for

2 Miles SSW Mammoth Lakes CA

  • Tonight

    Tonight: Mostly clear, with a low around 22. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 40. East wind around 5 mph becoming south in the afternoon.

    High: 40 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 10 percent chance of snow after 4am.  Mostly cloudy, with a low around 30. Southwest wind around 5 mph.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Snow likely before 1pm, then rain and snow.  Snow level rising to 9500 feet in the afternoon. High near 37. Southwest wind around 5 mph becoming southeast in the morning.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 37 °F

    Snow Likely
    then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow before 10pm, then rain between 10pm and 1am, then rain and snow after 1am.  Snow level 9700 feet. Low around 32. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow

  • New Year's Day

    New Year's Day: Rain and snow, becoming all snow after 7am.  High near 34. Southwest wind around 10 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Rain/Snow
    then Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Snow Likely

  • Friday

    Friday: A chance of snow.  Partly sunny, with a high near 33.

    High: 33 °F

    Chance Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 10pm. The snow could be heavy at times.  Mostly cloudy, with a low around 26.

    Low: 26 °F

    Heavy Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 22. East wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Increasing clouds, with a high near 40. East wind around 5 mph becoming south in the afternoon.
Tuesday Night
A 10 percent chance of snow after 4am. Mostly cloudy, with a low around 30. Southwest wind around 5 mph.
Wednesday
Snow likely before 1pm, then rain and snow. Snow level rising to 9500 feet in the afternoon. High near 37. Southwest wind around 5 mph becoming southeast in the morning. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow before 10pm, then rain between 10pm and 1am, then rain and snow after 1am. Snow level 9700 feet. Low around 32. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
New Year's Day
Rain and snow, becoming all snow after 7am. High near 34. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
A chance of snow. Partly sunny, with a high near 33.
Friday Night
Snow likely, mainly after 10pm. The snow could be heavy at times. Mostly cloudy, with a low around 26.
Saturday
Snow. Mostly cloudy, with a high near 30.
Saturday Night
Snow likely. Mostly cloudy, with a low around 21.
Sunday
Snow likely. Mostly cloudy, with a high near 28.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 18.
Monday
A chance of snow. Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Mammoth Lakes CA
 37.61°N 118.99°W (Elev. 9137 ft)
9:15 pm PST Dec 29, 2025
10pm PST Dec 29, 2025-6pm PST Jan 5, 2026
 
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Additional Resources

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