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.

Overcast

21°F

-6°C

Humidity 67%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 26 Dec 11:55 PM PST
Extended Forecast for

8 Miles ESE Mammoth Lakes CA

Winter Storm Warning December 27, 12:27am until December 27, 01:00am
Click here for hazard details and duration
...
  •  
    Winter Storm Warning December 27, 12:27am until December 27, 01:00am

    NOW until 1:00am Sat

    Winter Storm Warning

  • Overnight

    Low: 10 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Sunny, with a high near 37. Calm wind becoming northwest around 5 mph.

    High: 37 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 10. West wind around 5 mph.

    Low: 10 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 39. Calm wind becoming north around 5 mph in the afternoon.

    High: 39 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 10. West wind around 5 mph.

    Low: 10 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 43. West wind around 5 mph becoming northeast in the afternoon.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 11.

    Low: 11 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

Overnight
A 20 percent chance of snow after 1am. Mostly clear, with a low around 10. Southwest wind 5 to 10 mph.
Saturday
Sunny, with a high near 37. Calm wind becoming northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 10. West wind around 5 mph.
Sunday
Mostly sunny, with a high near 39. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 10. West wind around 5 mph.
Monday
Sunny, with a high near 43. West wind around 5 mph becoming northeast in the afternoon.
Monday Night
Clear, with a low around 11.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
A slight chance of rain and snow after 10am. Snow level rising to 7900 feet in the afternoon. Mostly sunny, with a high near 49.
Wednesday Night
A chance of rain and snow. Snow level 7500 feet. Mostly cloudy, with a low around 24.
New Year's Day
A chance of rain and snow. Snow level rising to 7800 feet in the afternoon. Partly sunny, with a high near 46.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 24.
Friday
Snow likely. Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ESE Mammoth Lakes CA
 37.61°N 118.82°W (Elev. 7201 ft)
Last Update:
9:15 pm PST Dec 26, 2025
Forecast Valid:
12am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
Forecast Discussion
 
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