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

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

60°F

16°C

Humidity 30%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 16 Apr 12:28 PM PDT
Extended Forecast for

3 Miles SSE Pittsburg CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 68. North wind around 17 mph, with gusts as high as 29 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 47. Northwest wind 10 to 16 mph, with gusts as high as 29 mph.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 71. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. West southwest wind 6 to 8 mph.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 11am. Partly sunny, with a high near 65.

    High: 65 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 68. North wind around 17 mph, with gusts as high as 29 mph.
Tonight
Clear, with a low around 47. Northwest wind 10 to 16 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 71. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 47. West southwest wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 71.
Sunday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 52.
Monday
Rain likely, mainly after 11am. Partly sunny, with a high near 65.
Monday Night
A chance of rain. Mostly cloudy, with a low around 50.
Tuesday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 63.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 50.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Pittsburg CA
 37.97°N 121.86°W (Elev. 692 ft)
Last Update:
12:32 pm PDT Apr 16, 2026
Forecast Valid:
1pm PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation