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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.

Clear

63°F

17°C

Humidity 14%
Wind Speed WSW 8 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 20 Apr 04:15 PM PDT
Extended Forecast for

8 Miles ESE 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: 54 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Breezy, with a south wind 10 to 20 mph, with gusts as high as 45 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A chance of snow showers before 11am, then rain and snow showers likely between 11am and 2pm, then snow showers after 2pm. Some thunder is also possible. High near 45. Windy, with a south wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 45 °F

    Rain/Snow and
    Windy

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before 11pm. Some thunder is also possible. Low around 22. 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 1 to 3 inches possible.

    Low: 22 °F

    Snow Showers
    and Windy
    then Chance
    Snow Showers
    and Breezy

  • Wednesday

    Wednesday: A 20 percent chance of snow showers. Mostly sunny, with a high near 42. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 42 °F

    Slight Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 23. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 54. Breezy, with a southwest wind around 20 mph, with gusts as high as 45 mph.
Tonight
Partly cloudy, with a low around 34. Breezy, with a south wind 10 to 20 mph, with gusts as high as 45 mph.
Tuesday
A chance of snow showers before 11am, then rain and snow showers likely between 11am and 2pm, then snow showers after 2pm. Some thunder is also possible. High near 45. Windy, with a south wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Tuesday Night
Snow showers, mainly before 11pm. Some thunder is also possible. Low around 22. 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 1 to 3 inches possible.
Wednesday
A 20 percent chance of snow showers. Mostly sunny, with a high near 42. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 23. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Mostly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 31.
Saturday
A chance of snow showers. Some thunder is also possible. Mostly sunny, with a high near 47.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 29.
Sunday
A chance of snow showers. Mostly sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ESE Mammoth Lakes CA
 37.59°N 118.84°W (Elev. 8307 ft)
Last Update:
4:30 pm 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