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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

53°F

12°C

Humidity 100%
Wind Speed S 16 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 18 Jun 05:28 AM PDT
Extended Forecast for

Brentwood CA

  • Today

    Today: Sunny, with a high near 86. West wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 83. Light west northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 86. West wind 5 to 11 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 58. West northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Juneteenth
Sunny, with a high near 83. Light west northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
Mostly clear, with a low around 57. West wind 5 to 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 88.
Sunday Night
Clear, with a low around 59.
Monday
Sunny, with a high near 90.
Monday Night
Clear, with a low around 60.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Clear, with a low around 61.
Wednesday
Sunny and hot, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brentwood CA
 37.93°N 121.7°W (Elev. 75 ft)
Last Update:
2:56 am PDT Jun 18, 2026
Forecast Valid:
6am PDT Jun 18, 2026-6pm PDT Jun 24, 2026
 
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Additional Resources

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