Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

45°F

7°C

Humidity 84%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 07 Dec 02:28 AM PST
Extended Forecast for

Brentwood CA

  • Overnight

    Overnight: Areas of dense fog.  Otherwise, mostly cloudy, with a low around 42. Light south southeast wind.

    Low: 42 °F

    Areas Dense
    Fog

  • Sunday

    Sunday: Areas of dense fog before 9am.  Otherwise, mostly cloudy, with a high near 53. East southeast wind around 5 mph becoming calm  in the morning.

    High: 53 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Northwest wind 3 to 6 mph.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 57. Light north wind.

    High: 57 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Patchy fog between 2am and 4am.  Otherwise, partly cloudy, with a low around 43. North northwest wind around 6 mph becoming calm  after midnight.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog between 7am and 10am.  Otherwise, partly sunny, with a high near 58.

    High: 58 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 61.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, mostly cloudy, with a low around 42. Light south southeast wind.
Sunday
Areas of dense fog before 9am. Otherwise, mostly cloudy, with a high near 53. East southeast wind around 5 mph becoming calm in the morning.
Sunday Night
Partly cloudy, with a low around 42. Northwest wind 3 to 6 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 57. Light north wind.
Monday Night
Patchy fog between 2am and 4am. Otherwise, partly cloudy, with a low around 43. North northwest wind around 6 mph becoming calm after midnight.
Tuesday
Patchy fog between 7am and 10am. Otherwise, partly sunny, with a high near 58.
Tuesday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 45.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 61.
Wednesday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 46.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 62.
Thursday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Friday
Patchy fog. Otherwise, mostly sunny, with a high near 61.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Brentwood CA
 37.93°N 121.7°W (Elev. 75 ft)
2:33 am PST Dec 7, 2025
3am PST Dec 7, 2025-6pm PST Dec 13, 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