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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

49°F

9°C

Humidity 36%
Wind Speed NNW 5 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 11 Jan 07:28 AM PST
Extended Forecast for

Pittsburg CA

Cold Weather Advisory until January 11, 09:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory until January 11, 09:00am

    NOW until 9:00am Sun

    Cold Weather Advisory

  • Today

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 53. Northeast wind 3 to 6 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Northeast wind 3 to 5 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56. Northeast wind around 7 mph.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 55. East wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 39. Calm wind.
Monday
Sunny, with a high near 53. Northeast wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 39. Northeast wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 56. Northeast wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 58.
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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:
12:26 am PST Jan 11, 2026
Forecast Valid:
8am PST Jan 11, 2026-6pm PST Jan 17, 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