Coastal Storm Along the East Coast; Pacific Storm System in the West on Friday

A strengthening coastal storm will bring soaking rains to portions of the Mid-Atlantic and Northeast, with accumulating snow likely across the higher elevations of northern New England through Friday. A Pacific storm system will bring heavy low elevation rain, and gusty winds to northern California and the Pacific Northwest, as well as possible blizzard conditions to the Sierra Nevada on Friday. Read More >

Current conditions at

Novato / Gnoss Field (KDVO)

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

Partly Cloudy

68°F

20°C

Humidity 60%
Wind Speed SSW 10 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 12 Nov 03:15 PM PST
Extended Forecast for

Petaluma CA

Coastal Flood Advisory November 12, 03:41pm until November 13, 04:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory November 12, 03:41pm until November 13, 04:00pm

    NOW until 4:00pm Fri

    Coastal Flood Advisory

  • Tonight

    Low: 49 °F

    Partly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain, mainly before 1pm.  High near 61. South wind 11 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 29 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 61 °F

    Rain then
    Rain Likely

  • Friday Night

    Friday Night: A chance of rain before 9pm, then a chance of rain after midnight.  Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 43. Calm wind.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday

    Saturday: A 20 percent chance of rain.  Areas of fog before 11am.  Otherwise, partly sunny, with a high near 65. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Slight Chance
    Rain and
    Areas Fog

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 4am.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 45. Calm wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Patchy Fog
    then Chance
    Rain and
    Patchy Fog

  • Sunday

    Sunday: Rain, mainly after 10am.  High near 61. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 61 °F

    Rain

  • Sunday Night

    Sunday Night: Rain, mainly before 10pm.  Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Rain then
    Chance Rain

  • Monday

    Monday: A slight chance of rain before 10am.  Partly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Tonight
A 30 percent chance of rain after 4am. Increasing clouds, with a low around 49. South southeast wind 5 to 9 mph, with gusts as high as 21 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 1pm. High near 61. South wind 11 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
A chance of rain before 9pm, then a chance of rain after midnight. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 43. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of rain. Areas of fog before 11am. Otherwise, partly sunny, with a high near 65. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 30 percent chance of rain after 4am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 45. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly after 10am. High near 61. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain, mainly before 10pm. Low around 43. Chance of precipitation is 80%.
Monday
A slight chance of rain before 10am. Partly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Patchy fog before 11am. Otherwise, sunny, with a high near 61.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 41.
Wednesday
Rain. Cloudy, with a high near 59.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 40.
Thursday
A chance of rain. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Petaluma CA
 38.23°N 122.65°W (Elev. 98 ft)
2:41 pm PST Nov 12, 2026
3pm PST Nov 12, 2026-6pm PST Nov 19, 2026
 
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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