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

BLACK DIAMOND (PIBC1)

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

NA

53°F

12°C

Humidity 59%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 11 Dec 10:28 AM PST
Extended Forecast for

3 Miles E Clayton CA

  • Today

    Today: Mostly sunny, with a high near 52. Northeast wind around 7 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. East wind 3 to 6 mph.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 52. East wind around 8 mph.

    High: 52 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. Southeast wind around 7 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 52. East wind around 6 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 52. Northeast wind around 7 mph.
Tonight
Mostly clear, with a low around 41. East wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 52. East wind around 8 mph.
Friday Night
Mostly clear, with a low around 41. Southeast wind around 7 mph.
Saturday
Mostly sunny, with a high near 52. East wind around 6 mph.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 54.
Monday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Wednesday
A chance of rain. Mostly cloudy, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
10:56 am PST Dec 11, 2025
11am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

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