Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

47°F

8°C

Humidity 76%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 08 Dec 09:28 AM PST
Extended Forecast for

2 Miles SSE Bethel Island CA

  • Today

    Today: Partly sunny, with a high near 50. Light east wind.

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Widespread dense fog, mainly between 8pm and 9pm.  Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Dense Fog

  • Tuesday

    Tuesday: Areas of fog before 10am.  Otherwise, partly sunny, with a high near 50. Calm wind becoming north around 5 mph in the afternoon.

    High: 50 °F

    Areas Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog.  Otherwise, partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 10am.  Otherwise, partly sunny, with a high near 58. Calm wind becoming north around 5 mph in the afternoon.

    High: 58 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog.  Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 58.

    High: 58 °F

    Areas Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog.  Otherwise, partly cloudy, with a low around 43.

    Low: 43 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 58.

    High: 58 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 50. Light east wind.
Tonight
Widespread dense fog, mainly between 8pm and 9pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Tuesday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 50. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 43. Calm wind.
Wednesday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 58. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Thursday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 58.
Thursday Night
Patchy fog. Otherwise, partly cloudy, with a low around 43.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 58.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Saturday
Areas of fog. Otherwise, partly sunny, with a high near 58.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Bethel Island CA
 38.01°N 121.64°W (Elev. 3 ft)
6:22 am PST Dec 8, 2025
10am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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Hourly Weather Forecast

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