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

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

78°F

26°C

Humidity 53%
Wind Speed N 8 MPH
Barometer NA
Dewpoint 59°F (15°C)
Visibility NA
Heat Index79°F (26°C)
Last update 18 Mar 02:28 PM PDT
Extended Forecast for

3 Miles NE Brentwood CA

Heat Advisory March 18, 03:26pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 03:26pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 91. North northwest wind 3 to 6 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 61. Light and variable wind.

    Low: 61 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 93. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Northwest wind around 5 mph becoming light and variable  after midnight.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 58. Light west northwest wind.
Thursday
Sunny, with a high near 91. North northwest wind 3 to 6 mph.
Thursday Night
Clear, with a low around 61. Light and variable wind.
Friday
Sunny, with a high near 93. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61. Northwest wind around 5 mph becoming light and variable after midnight.
Saturday
Partly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 52.
Monday
Mostly sunny, with a high near 80.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 76.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Brentwood CA
 37.96°N 121.65°W (Elev. 20 ft)
3:12 pm PDT Mar 18, 2026
3pm PDT Mar 18, 2026-6pm PDT Mar 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database