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

Critical Fire Weather Conditions Continue; Pacific Storm to Bring Heavy Snow to the Sierra-Nevada

Critical fire weather conditions are forecast for the Southern Plains and portions of Florida through Thursday, as gusty winds and dry conditions return to the region. A Pacific storm system will bring strong winds and low elevation rain to much of the West Coast and central Great Basin, and heavy high elevation mountain snow to the Sierra-Nevada through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Mostly Cloudy

54°F

12°C

Humidity 32%
Wind Speed E 12 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 21 Apr 09:55 AM PDT
Extended Forecast for

10 Miles ENE Mammoth Lakes CA

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

    NOW until 5:00pm Wed

    Winter Weather Advisory

  • Today

    High: 55 °F

    Breezy.
    Showers
    Likely then
    Rain/Snow

  • Tonight

    Tonight: Snow showers, mainly before 11pm. Some thunder is also possible. Low around 19. Breezy, with a west wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Snow Showers
    and Breezy
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: A 20 percent chance of snow showers. Mostly sunny, with a high near 48. West wind 5 to 10 mph.

    High: 48 °F

    Slight Chance
    Snow Showers

  • 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 57. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 57 °F

    Sunny

  • Thursday Night

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

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Today
Rain showers likely before 2pm, then rain and snow showers. Some thunder is also possible. Snow level 8400 feet lowering to 7500 feet. High near 55. Breezy, with a south wind 15 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow showers, mainly before 11pm. Some thunder is also possible. Low around 19. Breezy, with a west wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
A 20 percent chance of snow showers. Mostly sunny, with a high near 48. West wind 5 to 10 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 57. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 24. Northwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A slight chance of showers after 11am. Snow level 7300 feet rising to 8000 feet in the afternoon. Partly sunny, with a high near 56.
Saturday Night
A slight chance of showers before 11pm. Snow level 8200 feet lowering to 7300 feet after midnight . Mostly cloudy, with a low around 26.
Sunday
A slight chance of showers. Snow level 7000 feet rising to 7700 feet in the afternoon. Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ENE Mammoth Lakes CA
 37.69°N 118.78°W (Elev. 6916 ft)
Last Update:
4:30 am PDT Apr 21, 2026
Forecast Valid:
10am PDT Apr 21, 2026-6pm PDT Apr 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation