Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

DW5868 Mammoth Lakes (D5868)

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

NA

77°F

25°C

Humidity 17%
Wind Speed ESE 3 MPH
Barometer 29.64 in (1003.73 mb)
Dewpoint 29°F (-2°C)
Visibility NA
Heat Index77°F (25°C)
Last update 04 Aug 10:15 AM PDT
Extended Forecast for

Mammoth Lakes CA

  • Today

    Today: Sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Southwest wind around 5 mph becoming calm.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. West wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 25 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Clear, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 84. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Clear, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 85. Southwest wind around 5 mph becoming calm.
Thursday Night
Mostly clear, with a low around 59. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Lakes CA
 37.66°N 118.97°W (Elev. 8301 ft)
9:24 am PDT Aug 4, 2026
10am PDT Aug 4, 2026-6pm PDT Aug 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database