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

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

63°F

17°C

Humidity 50%
Wind Speed S 22 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 10 Oct 02:28 PM PDT
Extended Forecast for

Brentwood CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 74. West southwest wind around 14 mph, with gusts as high as 24 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 48. West southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 48 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 76. West southwest wind 3 to 7 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 51. West southwest wind around 6 mph becoming calm in the evening.

    Low: 51 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Sunny, with a high near 74. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 74. West southwest wind around 14 mph, with gusts as high as 24 mph.
Tonight
Clear, with a low around 48. West southwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Sunny, with a high near 76. West southwest wind 3 to 7 mph.
Sunday Night
Increasing clouds, with a low around 51. West southwest wind around 6 mph becoming calm in the evening.
Columbus Day
Sunny, with a high near 74. Calm wind becoming north northwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Clear, with a low around 51.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Clear, with a low around 53.
Thursday
Sunny, with a high near 85.
Thursday Night
Clear, with a low around 56.
Friday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brentwood CA
 37.91°N 121.67°W (Elev. 52 ft)
Last Update:
1:39 pm PDT Oct 10, 2026
Forecast Valid:
2pm PDT Oct 10, 2026-6pm PDT Oct 16, 2026
 
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