Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Novato / Gnoss Field (KDVO)

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

Clear

68°F

20°C

Humidity 68%
Wind Speed SW 8 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Jun 06:55 PM PDT
Extended Forecast for

Petaluma CA

Coastal Flood Advisory June 16, 07:28pm until June 18, 05:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory June 16, 07:28pm until June 18, 05:00am

    NOW until 5:00am Thu

    Coastal Flood Advisory

  • Tonight

    Low: 53 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog between 7am and 9am.  Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog between 3am and 4am.  Otherwise, increasing clouds, with a low around 53. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 53 °F

    Patchy Fog

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 74. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 74 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Patchy fog between 11pm and 1am.  Otherwise, mostly cloudy, with a low around 54. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 54 °F

    Patchy Fog

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 53.

    Low: 53 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 75.

    High: 75 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Tonight
Patchy fog between 11pm and 5am. Otherwise, increasing clouds, with a low around 53. West wind around 6 mph becoming calm in the evening.
Wednesday
Patchy fog between 7am and 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
Patchy fog between 3am and 4am. Otherwise, increasing clouds, with a low around 53. West southwest wind around 6 mph becoming calm in the evening.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 74. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
Patchy fog between 11pm and 1am. Otherwise, mostly cloudy, with a low around 54. Southwest wind 5 to 8 mph becoming calm in the evening.
Juneteenth
Partly sunny, with a high near 72.
Friday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 53.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 75.
Saturday Night
Areas of fog after 11pm. Otherwise, partly cloudy, with a low around 50.
Sunday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 78.
Sunday Night
Widespread fog. Otherwise, partly cloudy, with a low around 51.
Monday
Widespread fog. Otherwise, mostly sunny, with a high near 78.
Monday Night
Widespread fog. Otherwise, partly cloudy, with a low around 51.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 81.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Petaluma CA
 38.24°N 122.62°W (Elev. 39 ft)
1:39 pm PDT Jun 16, 2026
7pm PDT Jun 16, 2026-6pm PDT Jun 23, 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