Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Top of 22 (MTH02)

Lat: 37.63707°NLon: 119.0174°WElev: 10100.0ft.

NA

30°F

-1°C

Humidity 23%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint -4°F (-20°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 30 Dec 07:45 AM PST
Extended Forecast for

2 Miles NW Mammoth Lakes CA

  • Today

    Today: Partly sunny, with a high near 42. Calm wind becoming north around 5 mph.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow likely after 10am, mixing with rain after 1pm.  Cloudy, with a high near 41. Calm wind.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 41 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow likely before 10pm, then rain likely between 10pm and 4am, then rain and snow after 4am.  Snow level 9500 feet. Low around 32. Calm wind becoming south around 5 mph in the evening.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow

  • New Year's Day

    New Year's Day: Rain and snow, becoming all snow after 1pm.  Snow level 8800 feet. High near 38. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 28. Southwest wind around 10 mph, with gusts as high as 25 mph.  New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Snow likely, mainly after 4pm.  Partly sunny, with a high near 38. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 38 °F

    Snow Likely

  • Friday Night

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

    Low: 26 °F

    Heavy Snow

  • Saturday

    Saturday: Snow.  Mostly cloudy, with a high near 34.

    High: 34 °F

    Snow

Detailed Forecast

Today
Partly sunny, with a high near 42. Calm wind becoming north around 5 mph.
Tonight
Mostly cloudy, with a low around 26. Calm wind.
Wednesday
Snow likely after 10am, mixing with rain after 1pm. Cloudy, with a high near 41. Calm wind. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow likely before 10pm, then rain likely between 10pm and 4am, then rain and snow after 4am. Snow level 9500 feet. Low around 32. Calm wind becoming south around 5 mph in the evening. Chance of precipitation is 80%. Little or no snow accumulation expected.
New Year's Day
Rain and snow, becoming all snow after 1pm. Snow level 8800 feet. High near 38. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 28. Southwest wind around 10 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after 4pm. Partly sunny, with a high near 38. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 26.
Saturday
Snow. Mostly cloudy, with a high near 34.
Saturday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 21.
Sunday
A chance of snow. Partly sunny, with a high near 35.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 19.
Monday
A chance of snow. Partly sunny, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Mammoth Lakes CA
 37.66°N 119°W (Elev. 8681 ft)
1:15 am PST Dec 30, 2025
8am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
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Additional Resources

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