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

28°F

-2°C

Humidity 79%
Wind Speed NW 6 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 22 Apr 02:15 AM PDT
Extended Forecast for

6 Miles ESE Mammoth Lakes CA

Winter Weather Advisory April 22, 02:41am until April 22, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory April 22, 02:41am until April 22, 05:00pm

    NOW until 5:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 15 °F

    Slight Chance
    Snow Showers
    and Windy

  • Wednesday

    Wednesday: A slight chance of snow showers between 11am and 2pm.  Sunny, with a high near 29. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.  Chance of precipitation is 20%.

    High: 29 °F

    Slight Chance
    Snow Showers
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 15 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 39. West wind around 10 mph becoming northwest in the morning.

    High: 39 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. West wind 5 to 15 mph.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 39 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: A chance of snow showers after 11am.  Partly sunny, with a high near 33. Breezy.

    High: 33 °F

    Chance Snow
    Showers and
    Breezy

Detailed Forecast

Overnight
A 20 percent chance of snow showers. Partly cloudy, with a low around 15. Windy, with a southwest wind around 35 mph, with gusts as high as 50 mph.
Wednesday
A slight chance of snow showers between 11am and 2pm. Sunny, with a high near 29. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 15. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 39. West wind around 10 mph becoming northwest in the morning.
Thursday Night
Partly cloudy, with a low around 24. West wind 5 to 15 mph.
Friday
Partly sunny, with a high near 39. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 25. Breezy.
Saturday
A chance of snow showers after 11am. Partly sunny, with a high near 33. Breezy.
Saturday Night
Snow showers likely, mainly before 11pm. Mostly cloudy, with a low around 21. Breezy.
Sunday
A chance of snow showers, mainly after 11am. Partly sunny, with a high near 33. Breezy.
Sunday Night
A slight chance of snow showers. Partly cloudy, with a low around 20. Windy.
Monday
A slight chance of snow showers. Mostly sunny, with a high near 35.
Monday Night
A slight chance of snow showers. Mostly cloudy, with a low around 23. Breezy.
Tuesday
A chance of snow showers. Partly sunny, with a high near 35.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles ESE Mammoth Lakes CA
 37.58°N 118.9°W (Elev. 10617 ft)
11:30 pm PDT Apr 21, 2026
2am 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