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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

43°F

6°C

Humidity 100%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 08 Dec 01:28 AM PST
Extended Forecast for

2 Miles NNW Oakley CA

  • Overnight

    Overnight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Patchy Dense
    Fog

  • Monday

    Monday: Patchy dense fog before 10am, then patchy dense fog after 5pm. Otherwise, partly sunny, with a high near 52. Light east wind.

    High: 52 °F

    Patchy Dense
    Fog

  • Monday Night

    Monday Night: Areas of fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Areas Fog

  • Tuesday

    Tuesday: Patchy fog before 1pm. Otherwise, partly sunny, with a high near 54. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 54 °F

    Patchy Fog

  • Tuesday Night

    Tuesday Night: Patchy fog after 7pm. Otherwise, partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 1pm. Otherwise, mostly sunny, with a high near 57.

    High: 57 °F

    Patchy Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after 7pm. Otherwise, partly cloudy, with a low around 46.

    Low: 46 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 56.

    High: 56 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, partly cloudy, with a low around 45.

    Low: 45 °F

    Patchy Fog

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Monday
Patchy dense fog before 10am, then patchy dense fog after 5pm. Otherwise, partly sunny, with a high near 52. Light east wind.
Monday Night
Areas of fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Tuesday
Patchy fog before 1pm. Otherwise, partly sunny, with a high near 54. Calm wind becoming north northeast around 5 mph in the afternoon.
Tuesday Night
Patchy fog after 7pm. Otherwise, partly cloudy, with a low around 46. Calm wind.
Wednesday
Patchy fog before 1pm. Otherwise, mostly sunny, with a high near 57.
Wednesday Night
Patchy fog after 7pm. Otherwise, partly cloudy, with a low around 46.
Thursday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 56.
Thursday Night
Patchy fog. Otherwise, partly cloudy, with a low around 45.
Friday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 56.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Saturday
Areas of fog. Otherwise, partly sunny, with a high near 56.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 46.
Sunday
Areas of fog. Otherwise, partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Oakley CA
 38.02°N 121.72°W (Elev. 3 ft)
Last Update:
12:26 am PST Dec 8, 2025
Forecast Valid:
2am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation