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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

DW5868 Mammoth Lakes (D5868)

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

NA

80°F

27°C

Humidity 13%
Wind Speed SSW 1 MPH
Barometer 29.61 in (1002.71 mb)
Dewpoint 25°F (-4°C)
Visibility NA
Heat Index78°F (26°C)
Last update 02 Aug 10:15 AM PDT
Extended Forecast for

Mammoth Lakes CA

  • Today

    Today: Sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 55. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 78. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 56. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 30 mph.

    Low: 56 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 57. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 57 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 55. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 78. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Clear, with a low around 56. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 79. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Clear, with a low around 57. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 77.
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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:
4:30 am PDT Aug 2, 2026
Forecast Valid:
10am PDT Aug 2, 2026-6pm PDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

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