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

Mammoth Yosemite Airport (KMMH)

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

Partly Cloudy

61°F

16°C

Humidity 14%
Wind Speed ESE 9 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 20 Apr 03:55 PM PDT
Extended Forecast for

9 Miles ENE 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: 63 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 31. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain showers before 3pm, then rain and snow showers. Some thunder is also possible. Snow level 8400 feet lowering to 7500 feet in the afternoon . High near 54. Breezy, with a south wind 10 to 15 mph becoming southwest 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 54 °F

    Breezy.
    Showers
    Likely then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before 11pm. Some thunder is also possible. Low around 21. Breezy, with a southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 21 °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 20. West wind 5 to 10 mph becoming light in the evening.

    Low: 20 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

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

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 63. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 31. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Rain showers before 3pm, then rain and snow showers. Some thunder is also possible. Snow level 8400 feet lowering to 7500 feet in the afternoon . High near 54. Breezy, with a south wind 10 to 15 mph becoming southwest 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow showers, mainly before 11pm. Some thunder is also possible. Low around 21. Breezy, with a southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of around an 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 20. West wind 5 to 10 mph becoming light in the evening.
Thursday
Sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A chance of showers and thunderstorms. Snow level 7300 feet rising to 8000 feet in the afternoon. Mostly sunny, with a high near 55.
Saturday Night
A chance of showers. Snow level 8200 feet lowering to 7400 feet after midnight . Mostly cloudy, with a low around 27.
Sunday
A slight chance of rain and snow showers. Snow level 7000 feet rising to 7700 feet in the afternoon. Mostly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Mammoth Lakes CA
 37.68°N 118.81°W (Elev. 6890 ft)
Last Update:
11:30 am PDT Apr 20, 2026
Forecast Valid:
4pm PDT Apr 20, 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