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

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

48°F

9°C

Humidity 91%
Wind Speed S 12 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 13 Feb 01:28 AM PST
Extended Forecast for

3 Miles SSE Pittsburg CA

  • Overnight

    Overnight: Mostly clear, with a low around 45. West southwest wind around 6 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 63. West southwest wind 3 to 7 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43. Southwest wind 6 to 8 mph.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 59. South southwest wind 3 to 6 mph.

    High: 59 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 46. West southwest wind around 9 mph becoming south southeast after midnight.

    Low: 46 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 58. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Rain

  • Washington's Birthday

    Washington's Birthday: Rain. Cloudy, with a high near 52.

    High: 52 °F

    Rain

  • Monday Night

    Monday Night: Rain. Cloudy, with a low around 44.

    Low: 44 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 45. West southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 63. West southwest wind 3 to 7 mph.
Friday Night
Mostly cloudy, with a low around 43. Southwest wind 6 to 8 mph.
Saturday
Mostly cloudy, with a high near 59. South southwest wind 3 to 6 mph.
Saturday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 46. West southwest wind around 9 mph becoming south southeast after midnight.
Sunday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 58. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Low around 48. Chance of precipitation is 90%.
Washington's Birthday
Rain. Cloudy, with a high near 52.
Monday Night
Rain. Cloudy, with a low around 44.
Tuesday
Rain. Cloudy, with a high near 49.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 40.
Wednesday
Rain likely. Mostly cloudy, with a high near 50.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 40.
Thursday
A chance of rain. Partly sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Pittsburg CA
 37.97°N 121.86°W (Elev. 692 ft)
Last Update:
12:36 am PST Feb 13, 2026
Forecast Valid:
2am PST Feb 13, 2026-6pm PST Feb 19, 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