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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

79°F

26°C

Humidity 25%
Wind Speed SE 9 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Heat Index78°F (26°C)
Last update 10 Aug 02:28 AM PDT
Extended Forecast for

Pittsburg CA

  • Tonight

    Tonight: Partly cloudy, with a low around 62. West wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75. West southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. West southwest wind 11 to 16 mph, with gusts as high as 26 mph.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74. West wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. West southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. West wind 11 to 14 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 75. West southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 61. West southwest wind 11 to 16 mph, with gusts as high as 26 mph.
Friday
Mostly sunny, with a high near 74. West wind 9 to 13 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 60. West southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Partly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
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:
11:27 pm PDT Aug 12, 2026
Forecast Valid:
11pm PDT Aug 12, 2026-6pm PDT Aug 19, 2026
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation