Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

Overcast

23°F

-5°C

Humidity 67%
Wind Speed N 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 30 Dec 06:55 PM PST
Extended Forecast for

10 Miles ENE Mammoth Lakes CA

Winter Storm Watch January 2, 04:00pm until January 4, 10:00am
Click here for hazard details and duration
Winter Storm Watch
  • Tonight

    Tonight: Mostly cloudy, with a low around 8. Calm wind.

    Low: 8 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain and snow likely, mainly after 1pm.  Snow level 7100 feet rising to 7800 feet in the afternoon. Cloudy, with a high near 42. Calm wind.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain, snow, and freezing rain before 4am, then rain likely between 4am and 5am, then snow likely after 5am.  Snow level 8100 feet. Low around 23. Calm wind.  Chance of precipitation is 80%. Little or no ice accumulation expected.  Little or no snow accumulation expected.

    Low: 23 °F

    Wintry Mix

  • New Year's Day

    New Year's Day: Snow likely before 7am, then rain.  Snow level 8500 feet. High near 44. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow
    then Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before 10pm.  Snow level 8200 feet. Mostly cloudy, with a low around 23. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 23 °F

    Chance Rain

  • Friday

    Friday: A chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm.  Snow level 7600 feet. Partly sunny, with a high near 45. Light south wind increasing to 5 to 10 mph in the morning.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain before 7pm, then rain and snow likely.  Snow level 7300 feet. Mostly cloudy, with a low around 23. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Snow.  Mostly cloudy, with a high near 42.

    High: 42 °F

    Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly before 4am.  Mostly cloudy, with a low around 17.

    Low: 17 °F

    Snow Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 8. Calm wind.
Wednesday
Rain and snow likely, mainly after 1pm. Snow level 7100 feet rising to 7800 feet in the afternoon. Cloudy, with a high near 42. Calm wind. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
Rain, snow, and freezing rain before 4am, then rain likely between 4am and 5am, then snow likely after 5am. Snow level 8100 feet. Low around 23. Calm wind. Chance of precipitation is 80%. Little or no ice accumulation expected. Little or no snow accumulation expected.
New Year's Day
Snow likely before 7am, then rain. Snow level 8500 feet. High near 44. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of rain, mainly before 10pm. Snow level 8200 feet. Mostly cloudy, with a low around 23. Southwest wind around 5 mph becoming calm in the evening.
Friday
A chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Snow level 7600 feet. Partly sunny, with a high near 45. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
A chance of rain before 7pm, then rain and snow likely. Snow level 7300 feet. Mostly cloudy, with a low around 23. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
Snow. Mostly cloudy, with a high near 42.
Saturday Night
Snow likely, mainly before 4am. Mostly cloudy, with a low around 17.
Sunday
Snow likely, mainly after 10am. Mostly cloudy, with a high near 41.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 14.
Monday
A chance of snow. Partly sunny, with a high near 40.
Monday Night
A chance of snow. Mostly cloudy, with a low around 17.
Tuesday
A chance of snow. Partly sunny, with a high near 42.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ENE Mammoth Lakes CA
 37.69°N 118.78°W (Elev. 6916 ft)
1:15 pm PST Dec 30, 2025
7pm PST Dec 30, 2025-6pm PST Jan 6, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database