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

Critical Fire Weather in the High Plains; Heat Continues in the West

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

75°F

24°C

Humidity 44%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 18 Mar 09:28 PM PDT
Extended Forecast for

5 Miles SW Brentwood CA

Heat Advisory March 18, 10:09pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 10:09pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Light and variable wind becoming north around 6 mph in the afternoon.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 66. Northwest wind around 5 mph becoming light and variable after midnight.

    Low: 66 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 91. Calm wind becoming north around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. Northwest wind around 6 mph becoming southwest in the evening.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 63. West southwest wind 3 to 5 mph.
Thursday
Sunny, with a high near 89. Light and variable wind becoming north around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 66. Northwest wind around 5 mph becoming light and variable after midnight.
Friday
Sunny, with a high near 91. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65. Northwest wind around 6 mph becoming southwest in the evening.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 53.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Brentwood CA
 37.87°N 121.77°W (Elev. 758 ft)
Last Update:
9:21 pm PDT Mar 18, 2026
Forecast Valid:
10pm PDT Mar 18, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation