Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Mist

43°F

6°C

Humidity 100%
Wind Speed NNE 4 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 43°F (6°C)
Visibility 3.00 mi
Wind Chill41°F (5°C)
Last update 11 Dec 05:35 AM PST
Extended Forecast for

4 Miles E Hercules CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 46. East wind 8 to 10 mph.

    High: 46 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 40. East southeast wind around 7 mph.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49. East northeast wind 8 to 10 mph.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. East wind around 7 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 57. East wind 6 to 8 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 9pm.  Otherwise, partly cloudy, with a low around 41.

    Low: 41 °F

    Patchy Fog

  • Sunday

    Sunday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain after 4pm.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 46. East wind 8 to 10 mph.
Tonight
Partly cloudy, with a low around 40. East southeast wind around 7 mph.
Friday
Mostly sunny, with a high near 49. East northeast wind 8 to 10 mph.
Friday Night
Mostly clear, with a low around 40. East wind around 7 mph.
Saturday
Mostly sunny, with a high near 57. East wind 6 to 8 mph.
Saturday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
A slight chance of rain after 4pm. Mostly cloudy, with a high near 57.
Monday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Mostly cloudy, with a high near 59.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Wednesday
A chance of rain. Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Hercules CA
 38.01°N 122.18°W (Elev. 597 ft)
2:25 am PST Dec 11, 2025
5am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database