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

53°F

12°C

Humidity 66%
Wind Speed S 15 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 19 Oct 06:28 PM PDT
Extended Forecast for

Pittsburg CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. West southwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 67. Light and variable wind.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 4am. Mostly cloudy, with a low around 58. Light west northwest wind.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 68. West southwest wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 57. West southwest wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers. Partly sunny, with a high near 68. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °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 70.

    High: 70 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. West southwest wind 5 to 11 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 67. Light and variable wind.
Tuesday Night
A 30 percent chance of showers after 4am. Mostly cloudy, with a low around 58. Light west northwest wind.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 68. West southwest wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 57. West southwest wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 68. 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 70.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 70.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 55.
Monday
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:
1:47 pm PDT Oct 19, 2026
Forecast Valid:
6pm PDT Oct 19, 2026-6pm PDT Oct 26, 2026
 
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