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

Berkeley Lab (LBNL1)

Lat: 37.8771°NLon: 122.2486°WElev: 888.0ft.

NA

55°F

13°C

Humidity 66%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 08 Dec 03:30 PM PST
Extended Forecast for

Berkeley CA

  • Tonight

    Tonight: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, sunny, with a high near 62. North wind 3 to 5 mph.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 63. Calm wind becoming north around 5 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 7am.  Otherwise, sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Mostly clear, with a low around 46. Calm wind.
Tuesday
Patchy fog before 10am. Otherwise, sunny, with a high near 62. North wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 47. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 63. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 47. Calm wind.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 62.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 45.
Saturday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 61.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 50.
Monday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Berkeley CA
 37.86°N 122.26°W (Elev. 190 ft)
12:26 pm PST Dec 8, 2025
3pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database