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

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

83°F

28°C

Humidity 24%
Wind Speed S 8 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Heat Index81°F (27°C)
Last update 04 Aug 09:00 AM PDT
Extended Forecast for

23 Miles SW Keyes CA

  • Today

    Today: Sunny and hot, with a high near 100. South wind 5 to 7 mph becoming north northeast in the afternoon.

    High: 100 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 70. West southwest wind 3 to 8 mph.

    Low: 70 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Light and variable wind becoming east southeast 5 to 7 mph in the afternoon.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 70. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 70 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 72.

    Low: 72 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 74.

    Low: 74 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 100. South wind 5 to 7 mph becoming north northeast in the afternoon.
Tonight
Clear, with a low around 70. West southwest wind 3 to 8 mph.
Wednesday
Sunny and hot, with a high near 99. Light and variable wind becoming east southeast 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 70. West northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 100. Calm wind becoming north 5 to 7 mph in the afternoon.
Thursday Night
Clear, with a low around 72.
Friday
Sunny and hot, with a high near 101.
Friday Night
Clear, with a low around 74.
Saturday
Sunny and hot, with a high near 101.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Clear, with a low around 69.
Monday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
23 Miles SW Keyes CA
 37.33°N 121.21°W (Elev. 1001 ft)
2:00 am PDT Aug 4, 2026
9am PDT Aug 4, 2026-6pm PDT Aug 10, 2026
 
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Additional Resources

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