Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

unknown precip

27°F

-3°C

Humidity 92%
Wind Speed WNW 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 22 Apr 02:55 AM PDT
Extended Forecast for

10 Miles ENE Mammoth Lakes CA

Winter Weather Advisory April 22, 03:14am until April 22, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory April 22, 03:14am until April 22, 05:00pm

    NOW until 5:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 47. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 18. West wind 5 to 10 mph becoming light  in the evening.

    Low: 18 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 58. Calm wind becoming north around 5 mph.

    High: 58 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. North wind around 5 mph becoming calm  in the evening.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 58. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 11am.  Snow level 7600 feet. Partly sunny, with a high near 53.

    High: 53 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 19. West wind around 5 mph.
Wednesday
Sunny, with a high near 47. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 18. West wind 5 to 10 mph becoming light in the evening.
Thursday
Sunny, with a high near 58. Calm wind becoming north around 5 mph.
Thursday Night
Partly cloudy, with a low around 24. North wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 58. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 26.
Saturday
A chance of showers after 11am. Snow level 7600 feet. Partly sunny, with a high near 53.
Saturday Night
A chance of rain showers before 8pm, then a chance of rain and snow showers between 8pm and 2am, then a slight chance of snow showers after 2am. Snow level 7800 feet lowering to 6900 feet after midnight . Mostly cloudy, with a low around 22.
Sunday
A chance of rain and snow showers between 11am and 2pm, then a chance of rain showers after 2pm. Mostly sunny, with a high near 52.
Sunday Night
A slight chance of showers. Snow level 7600 feet lowering to 6900 feet after midnight . Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 54.
Monday Night
A slight chance of rain and snow showers. Snow level 7700 feet lowering to 7000 feet after midnight . Mostly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 53.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ENE Mammoth Lakes CA
 37.69°N 118.78°W (Elev. 6916 ft)
11:30 pm PDT Apr 21, 2026
3am PDT Apr 22, 2026-6pm PDT Apr 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database