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

HELL HOLE (HLLC1)

Lat: 39.06971°NLon: 120.41989°WElev: 5240.0ft.

NA

90°F

32°C

Humidity 13%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Heat Index86°F (30°C)
Last update 31 Jul 02:09 PM PDT
Extended Forecast for

Donner Summit CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. West southwest wind around 8 mph, with gusts as high as 21 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. West southwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. West southwest wind around 8 mph, with gusts as high as 21 mph.
Tonight
Clear, with a low around 52. West southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
Mostly clear, with a low around 51. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Clear, with a low around 50.
Monday
Sunny, with a high near 83.
Monday Night
Clear, with a low around 53.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Clear, with a low around 53.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Clear, with a low around 52.
Thursday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donner Summit CA
 39.33°N 120.37°W (Elev. 6965 ft)
Last Update:
2:00 pm PDT Jul 31, 2026
Forecast Valid:
2pm PDT Jul 31, 2026-6pm PDT Aug 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation