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

Novato / Gnoss Field (KDVO)

Lat: 38.14178°NLon: 122.55463°WElev: 3.0ft.

Overcast

45°F

7°C

Humidity 93%
Wind Speed ESE 5 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 08 Dec 02:55 AM PST
Extended Forecast for

3 Miles NNW Sonoma CA

  • Overnight

    Overnight: Widespread fog, mainly after 4am. Otherwise, partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Fog

  • Monday

    Monday: Widespread fog, mainly before 9am. Otherwise, mostly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Fog

  • Monday Night

    Monday Night: Widespread fog, mainly before 5am. Otherwise, partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Fog

  • Tuesday

    Tuesday: Widespread fog, mainly before 9am. Otherwise, mostly sunny, with a high near 63. Calm wind.

    High: 63 °F

    Fog then
    Sunny

  • Tuesday Night

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

    Low: 43 °F

    Areas Fog

  • Wednesday

    Wednesday: Areas of fog before 11am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog. Otherwise, mostly clear, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 11am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 42.

    Low: 42 °F

    Patchy Fog

Detailed Forecast

Overnight
Widespread fog, mainly after 4am. Otherwise, partly cloudy, with a low around 39. Calm wind.
Monday
Widespread fog, mainly before 9am. Otherwise, mostly sunny, with a high near 60. Calm wind.
Monday Night
Widespread fog, mainly before 5am. Otherwise, partly cloudy, with a low around 42. Calm wind.
Tuesday
Widespread fog, mainly before 9am. Otherwise, mostly sunny, with a high near 63. Calm wind.
Tuesday Night
Areas of fog. Otherwise, partly cloudy, with a low around 43. Calm wind.
Wednesday
Areas of fog before 11am. Otherwise, sunny, with a high near 66.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Thursday
Areas of fog before 11am. Otherwise, sunny, with a high near 66.
Thursday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 42.
Friday
Patchy fog before 10am. Otherwise, sunny, with a high near 66.
Friday Night
Patchy fog. Otherwise, mostly clear, with a low around 41.
Saturday
Areas of fog. Otherwise, sunny, with a high near 64.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Sunday
Areas of fog. Otherwise, partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Sonoma CA
 38.33°N 122.5°W (Elev. 157 ft)
Last Update:
2:09 am PST Dec 8, 2025
Forecast Valid:
3am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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