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

Livermore, Livermore Municipal Airport (KLVK)

Lat: 37.69278°NLon: 121.81444°WElev: 397.0ft.

Mist

41°F

5°C

Humidity 93%
Wind Speed ENE 8 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 39°F (4°C)
Visibility 2.00 mi
Wind Chill36°F (2°C)
Last update 11 Dec 06:20 AM PST
Extended Forecast for

Pleasanton CA

  • Today

    Today: Patchy fog between 9am and 10am.  Otherwise, sunny, with a high near 58. Calm wind becoming northeast 5 to 7 mph in the afternoon.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. Calm wind becoming northeast around 6 mph in the morning.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63. Calm wind.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then 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 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

Today
Patchy fog between 9am and 10am. Otherwise, sunny, with a high near 58. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Tonight
Mostly clear, with a low around 42. Calm wind.
Friday
Sunny, with a high near 59. Calm wind becoming northeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 42. Calm wind.
Saturday
Sunny, with a high near 63. Calm wind.
Saturday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 42.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 62.
Monday Night
A slight chance of rain after 10pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 63.
Tuesday Night
A chance of rain. Areas of fog. Otherwise, mostly cloudy, with a low around 51.
Wednesday
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Pleasanton CA
 37.65°N 121.89°W (Elev. 322 ft)
2:25 am PST Dec 11, 2025
6am 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

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