National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Mostly Cloudy

25°F

-4°C

Humidity 73%
Wind Speed W 5 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 26 Dec 06:55 PM PST
Extended Forecast for

10 Miles ESE Mammoth Lakes CA

Winter Storm Warning December 26, 07:24pm until December 27, 01:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 26, 07:24pm until December 27, 01:00am

    NOW until 1:00am Sat

    Winter Storm Warning

  • Tonight

    Low: 11 °F

    Breezy.
    Chance Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Sunny, with a high near 30. Northwest wind 5 to 15 mph.

    High: 30 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 11. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.

    Low: 11 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 33. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 13. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 13 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 35. Breezy, with a northwest wind 15 to 25 mph becoming north in the afternoon. Winds could gust as high as 35 mph.

    High: 35 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 16. Breezy.

    Low: 16 °F

    Clear and
    Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

Tonight
A chance of snow before 10pm, then a slight chance of snow after 1am. Partly cloudy, with a low around 11. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 30. Northwest wind 5 to 15 mph.
Saturday Night
Mostly clear, with a low around 11. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 33. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 13. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Monday
Sunny, with a high near 35. Breezy, with a northwest wind 15 to 25 mph becoming north in the afternoon. Winds could gust as high as 35 mph.
Monday Night
Clear, with a low around 16. Breezy.
Tuesday
Sunny, with a high near 41.
Tuesday Night
Mostly clear, with a low around 21.
Wednesday
A slight chance of snow after 10am. Mostly sunny, with a high near 42.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 25.
New Year's Day
A chance of snow. Partly sunny, with a high near 39.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 24. Breezy.
Friday
Snow likely. Mostly cloudy, with a high near 35. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Mammoth Lakes CA
 37.57°N 118.81°W (Elev. 10469 ft)
Last Update:
1:15 pm PST Dec 26, 2025
Forecast Valid:
7pm PST Dec 26, 2025-6pm PST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation