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

Livermore, Livermore Municipal Airport (KLVK)

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

Mist

43°F

6°C

Humidity 93%
Wind Speed ENE 6 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 41°F (5°C)
Visibility 2.50 mi
Wind Chill39°F (4°C)
Last update 07 Dec 07:00 PM PST
Extended Forecast for

7 Miles S Brentwood CA

  • Tonight

    Tonight: Patchy dense fog before 3am, then patchy dense fog after 5am. Otherwise, partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Dense
    Fog

  • Monday

    Monday: Patchy dense fog before 11am. Otherwise, mostly sunny, with a high near 45. Light and variable wind.

    High: 45 °F

    Patchy Dense
    Fog then
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 58. Light and variable wind.

    High: 58 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 61.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy dense fog before 3am, then patchy dense fog after 5am. Otherwise, partly cloudy, with a low around 42. Calm wind.
Monday
Patchy dense fog before 11am. Otherwise, mostly sunny, with a high near 45. Light and variable wind.
Monday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 44. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 58. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 46. Calm wind.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 45.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S Brentwood CA
 37.84°N 121.71°W (Elev. 758 ft)
Last Update:
6:20 pm PST Dec 7, 2025
Forecast Valid:
7pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation