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 >

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

51°F

11°C

Humidity 80%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 22 Nov 07:28 AM PST
Extended Forecast for

Antioch CA

Dense Fog Advisory until November 22, 11:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until November 22, 11:00am

    NOW until 11:00am Sat

    Dense Fog Advisory

  • Today

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 60. Light north northwest wind.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 61. Calm wind becoming north around 6 mph in the morning.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 62. Light and variable wind.
Tonight
Mostly clear, with a low around 45. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 60. Light north northwest wind.
Sunday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 47. Calm wind.
Monday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 61. Calm wind becoming north around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 45.
Thanksgiving Day
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 48.
Friday
A slight chance of rain. Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Antioch CA
 38°N 121.81°W (Elev. 36 ft)
Last Update:
7:12 am PST Nov 22, 2025
Forecast Valid:
7am PST Nov 22, 2025-6pm PST Nov 28, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation