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

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

49°F

9°C

Humidity 89%
Wind Speed N 8 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 25 Nov 03:28 AM PST
Extended Forecast for

2 Miles ESE Antioch CA

Dense Fog Advisory November 25, 03:50am until November 25, 11:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory November 25, 03:50am until November 25, 11:00am

    NOW until 11:00am Tue

    Dense Fog Advisory

  • Overnight

    Low: 45 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Widespread dense fog, mainly before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Light and variable wind.

    High: 58 °F

    Dense Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy dense fog after 4am. Otherwise, mostly cloudy, with a low around 43. Light and variable wind.

    Low: 43 °F

    Partly Cloudy
    then Patchy
    Dense Fog

  • Wednesday

    Wednesday: Areas of dense fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 59. Calm wind becoming east around 5 mph in the morning.

    High: 59 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 45. Light southeast wind.
Tuesday
Widespread dense fog, mainly before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Light and variable wind.
Tuesday Night
Patchy dense fog after 4am. Otherwise, mostly cloudy, with a low around 43. Light and variable wind.
Wednesday
Areas of dense fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 59. Calm wind becoming east around 5 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 43. Calm wind.
Thanksgiving Day
Partly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Antioch CA
 37.99°N 121.77°W (Elev. 200 ft)
Last Update:
1:17 am PST Nov 25, 2025
Forecast Valid:
3am PST Nov 25, 2025-6pm PST Dec 1, 2025
 
Forecast Discussion
 
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Additional Resources

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