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

83°F

28°C

Humidity 15%
Wind Speed NW 3 MPH
Barometer 29.62 in (1003.05 mb)
Dewpoint 31°F (-1°C)
Visibility NA
Heat Index80°F (27°C)
Last update 04 Aug 12:00 PM PDT
Extended Forecast for

Mammoth Lakes CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 85. Southwest wind 5 to 10 mph, with gusts 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 59.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 85. Southwest wind 5 to 10 mph, with gusts 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 59.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Lakes CA
 37.66°N 118.97°W (Elev. 8301 ft)
11:30 am PDT Aug 4, 2026
12pm PDT Aug 4, 2026-6pm PDT Aug 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database