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

3 Miles NE Discovery Bay 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: 63 °F

    Patchy Dense
    Fog then
    Sunny

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 61. Calm wind.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Fog

  • Monday

    Monday: Mostly sunny, with a high near 61. Calm wind becoming north northwest around 6 mph in the morning.

    High: 61 °F

    Mostly Sunny

  • Monday Night

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

    Low: 42 °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 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Today
Patchy dense fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 63. Light and variable wind.
Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 42. Calm wind.
Sunday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 61. Calm wind.
Sunday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 44. Calm wind.
Monday
Mostly sunny, with a high near 61. Calm wind becoming north northwest around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 42.
Thanksgiving Day
Mostly sunny, with a high near 62.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
A slight chance of rain. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Discovery Bay CA
 37.93°N 121.56°W (Elev. -2 ft)
Last Update:
7:12 am PST Nov 22, 2025
Forecast Valid:
8am 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