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

55°F

13°C

Humidity 62%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 21 Nov 06:28 PM PST
Extended Forecast for

5 Miles N Discovery Bay CA

  • Tonight

    Tonight: Patchy fog before 1am, then patchy fog after 2am. Otherwise, increasing clouds, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy dense fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 61. Light north northwest wind.

    High: 61 °F

    Patchy Dense
    Fog then
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog before 11pm, then patchy fog after 1am. Otherwise, partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 61. Light northwest wind.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog. Otherwise, partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Monday

    Monday: Mostly sunny, with a high near 61.

    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 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog before 1am, then patchy fog after 2am. Otherwise, increasing clouds, with a low around 41. Calm wind.
Saturday
Patchy dense fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 61. Light north northwest wind.
Saturday Night
Patchy fog before 11pm, then patchy fog after 1am. Otherwise, partly cloudy, with a low around 41. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 61. Light northwest wind.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 43. Calm wind.
Monday
Mostly sunny, with a high near 61.
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 40.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 42.
Thanksgiving Day
Patchy fog. Otherwise, mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 44.
Friday
A slight chance of rain. Partly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Discovery Bay CA
 37.97°N 121.57°W (Elev. 3 ft)
Last Update:
12:33 pm PST Nov 21, 2025
Forecast Valid:
7pm PST Nov 21, 2025-6pm PST Nov 28, 2025
 
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Additional Resources

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Chance of Precipitation