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

BLACK DIAMOND (PIBC1)

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

NA

50°F

10°C

Humidity 85%
Wind Speed S 10 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 20 Oct 01:28 AM PDT
Extended Forecast for

Pittsburg CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. West southwest wind 3 to 5 mph.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly between 10pm and 5am. Mostly cloudy, with a low around 58. Light and variable wind.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly between 9am and 4pm. Partly sunny, with a high near 69. West wind 5 to 7 mph.

    High: 69 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 58. West southwest wind 3 to 5 mph.

    Low: 58 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. West southwest wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 68. Light and variable wind.
Tuesday Night
A 30 percent chance of showers, mainly between 10pm and 5am. Mostly cloudy, with a low around 58. Light and variable wind.
Wednesday
A 30 percent chance of showers, mainly between 9am and 4pm. Partly sunny, with a high near 69. West wind 5 to 7 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58. West southwest wind 3 to 5 mph.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Sunny, with a high near 71.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 55.
Monday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pittsburg CA
 38.04°N 121.87°W (Elev. 3 ft)
Last Update:
1:26 am PDT Oct 20, 2026
Forecast Valid:
1am PDT Oct 20, 2026-6pm PDT Oct 26, 2026
 
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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