Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

42°F

6°C

Humidity 100%
Wind Speed NNE 13 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 01 Dec 11:28 PM PST
Extended Forecast for

Brentwood CA

  • Tonight

    Tonight: Increasing clouds, with a steady temperature around 45. Light west southwest wind.

    Low: 45 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42. Calm wind becoming northwest 5 to 7 mph in the evening.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61. North wind around 11 mph, with gusts as high as 18 mph.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. Northwest wind 3 to 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a steady temperature around 45. Light west southwest wind.
Tuesday
Mostly sunny, with a high near 61. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 42. Calm wind becoming northwest 5 to 7 mph in the evening.
Wednesday
Mostly sunny, with a high near 61. North wind around 11 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 39. Northwest wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 61.
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 44.
Monday
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)
12:26 pm PST Dec 1, 2025
11pm PST Dec 1, 2025-6pm PST Dec 8, 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