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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

57°F

14°C

Humidity 60%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 21 Nov 12:28 PM PST
Extended Forecast for

Brentwood CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. North northeast wind 3 to 5 mph.

    High: 61 °F

    Sunny

  • Tonight

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

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 62. Light north northwest wind.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Light and variable wind.

    High: 62 °F

    Mostly 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 61.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 61. North northeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 44. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 62. Light north northwest wind.
Saturday Night
Mostly clear, with a low around 43. Calm wind.
Sunday
Mostly sunny, with a high near 62. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 44.
Thanksgiving Day
Mostly sunny, with a high near 63.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brentwood CA
 37.93°N 121.7°W (Elev. 75 ft)
Last Update:
12:33 pm PST Nov 21, 2025
Forecast Valid:
1pm PST Nov 21, 2025-6pm PST Nov 27, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation