Tracking Areas of Winter Weather and Heavy Rainfall

A cold front will move through the Great Lakes and Northeast U.S. today, bringing areas of snow and snow squalls which can bring rapid reductions to visibility and slick roads. A storm system will shift from the northern Gulf Coast through the Southeast U.S. today through Friday with areas of heavy to excessive rainfall and light snow further north. Heavy snow is also expected in the Rockies. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

38°F

3°C

Humidity 100%
Wind Speed NNE 12 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 04 Dec 08:28 AM PST
Extended Forecast for

Brentwood CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 53. Calm wind.

    High: 53 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 41. West southwest wind around 5 mph becoming calm  after midnight.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 59. Light north wind.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 61. North northwest wind 3 to 5 mph.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 53. Calm wind.
Tonight
Mostly clear, with a low around 41. West southwest wind around 5 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 59. Light north wind.
Friday Night
Mostly clear, with a low around 44. Calm wind.
Saturday
Mostly sunny, with a high near 61. North northwest wind 3 to 5 mph.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 46.
Wednesday
Patchy fog. Otherwise, partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Brentwood CA
 37.93°N 121.7°W (Elev. 75 ft)
2:09 am PST Dec 4, 2025
9am PST Dec 4, 2025-6pm PST Dec 10, 2025
 
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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