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

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

N/A

Humidity 21%
Wind Speed S 9 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 10 Sep 03:28 AM PDT
Extended Forecast for

Pittsburg CA

  • Today

    Today: Sunny, with a high near 81. West wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. West southwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Southwest wind 14 to 16 mph, with gusts as high as 26 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. West southwest wind 9 to 16 mph, with gusts as high as 26 mph.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Southwest wind 5 to 8 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 81. West wind 7 to 11 mph, with gusts as high as 18 mph.
Tonight
Clear, with a low around 60. West southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 74. Southwest wind 14 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 60. West southwest wind 9 to 16 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 78. Southwest wind 5 to 8 mph.
Thursday Night
Clear, with a low around 60.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 60.
Monday
Mostly sunny, with a high near 78.
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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:
5:14 am PDT Sep 15, 2026
Forecast Valid:
7am PDT Sep 15, 2026-6pm PDT Sep 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation