National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River to Begin to Impact the Northwest U.S.; Gusty Winds in the Northeast U.S.

A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. Read More >

Hazardous Weather Conditions

Current conditions at

Novato / Gnoss Field (KDVO)

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

Overcast

57°F

14°C

Humidity 76%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 03 Nov 07:15 PM PST
Extended Forecast for

Petaluma CA

Coastal Flood Advisory November 4, 08:00am until November 8, 02:00pm
Wind Advisory November 4, 10:00pm until November 5, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
Wind Advisory

  • Tonight

    Tonight: Patchy fog before 4am, then patchy fog after 5am. Otherwise, increasing clouds, with a steady temperature around 54. West northwest wind around 6 mph becoming calm in the evening.

    Low: 54 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy dense fog before 8am. Otherwise, mostly cloudy, with a high near 67. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 67 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely after 10pm. Cloudy, with a low around 55. Breezy, with a south wind 13 to 18 mph increasing to 19 to 24 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Rain Likely
    and Breezy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. High near 65. Breezy, with a south wind 20 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 53. South southwest wind 5 to 9 mph becoming light south southeast after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 69.

    High: 69 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 69.

    High: 69 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 50.

    Low: 50 °F

    Patchy Fog

Detailed Forecast

Tonight
Patchy fog before 4am, then patchy fog after 5am. Otherwise, increasing clouds, with a steady temperature around 54. West northwest wind around 6 mph becoming calm in the evening.
Tuesday
Patchy dense fog before 8am. Otherwise, mostly cloudy, with a high near 67. Light southeast wind becoming south 5 to 10 mph in the morning.
Tuesday Night
Rain likely after 10pm. Cloudy, with a low around 55. Breezy, with a south wind 13 to 18 mph increasing to 19 to 24 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. High near 65. Breezy, with a south wind 20 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 40 percent chance of showers, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 53. South southwest wind 5 to 9 mph becoming light south southeast after midnight. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 69.
Thursday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 50.
Friday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 69.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 50.
Saturday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
A slight chance of rain. Partly sunny, with a high near 70.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 51.
Monday
A slight chance of rain. Partly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Petaluma CA
 38.22°N 122.61°W (Elev. 197 ft)
Last Update:
1:45 pm PST Nov 3, 2025
Forecast Valid:
7pm PST Nov 3, 2025-6pm PST Nov 10, 2025
 
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Additional Resources

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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