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

Fire Weather Issues; Pacific System Moving Inland

Dry fuels, strong winds and dry weather will continue to bring elevated to critical fire weather conditions to the areas of the Plains, Midwest and Southeast today. A Pacific storm system will bring low elevation rain and heavy high elevation mountain snow to California through early week, expanding into the Pacific Northwest, Great Basin, and southern California on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

DW5868 Mammoth Lakes (D5868)

Lat: 37.625°NLon: 118.98°WElev: 7973.0ft.

NA

55°F

13°C

Humidity 26%
Wind Speed WSW 3 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Last update 20 Apr 02:00 PM PDT
Extended Forecast for

Mammoth Lakes CA

Winter Weather Advisory April 21, 05:00am until April 22, 05:00pm
Lake Wind Advisory until April 20, 10:00pm
Click here for hazard details and duration
Winter Weather Advisory
Lake Wind Advisory
  •  
    Lake Wind Advisory until April 20, 10:00pm

    NOW until 10:00pm Mon

    Lake Wind Advisory

  • This Afternoon

    High: 48 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 31. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 50 mph.

    Low: 31 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Snow showers, mainly after 11am. The snow could be heavy at times. Some thunder is also possible. High near 37. Windy, with a southwest wind around 30 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.

    High: 37 °F

    Heavy Snow
    and Windy

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before 11pm. The snow could be heavy at times. Some thunder is also possible. Low around 19. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 19 °F

    Heavy Snow
    and Windy
    then Chance
    Snow Showers
    and Breezy

  • Wednesday

    Wednesday: A 30 percent chance of snow showers. Partly sunny, with a high near 34. Southwest wind 10 to 15 mph, with gusts as high as 35 mph. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 18. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.

    Low: 18 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Thursday Night

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

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 48. Breezy, with a southwest wind around 20 mph, with gusts as high as 50 mph.
Tonight
Mostly clear, with a low around 31. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 50 mph.
Tuesday
Snow showers, mainly after 11am. The snow could be heavy at times. Some thunder is also possible. High near 37. Windy, with a southwest wind around 30 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.
Tuesday Night
Snow showers, mainly before 11pm. The snow could be heavy at times. Some thunder is also possible. Low around 19. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Wednesday
A 30 percent chance of snow showers. Partly sunny, with a high near 34. Southwest wind 10 to 15 mph, with gusts as high as 35 mph. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Mostly clear, with a low around 18. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A chance of snow showers. Some thunder is also possible. Mostly sunny, with a high near 42.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 27.
Sunday
A chance of snow showers. Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Lakes CA
 37.61°N 118.99°W (Elev. 9137 ft)
Last Update:
11:30 am PDT Apr 20, 2026
Forecast Valid:
2pm PDT Apr 20, 2026-6pm PDT Apr 26, 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