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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Current conditions at

Novato / Gnoss Field (KDVO)

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

Clear

55°F

13°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 13 Aug 01:15 AM PDT
Extended Forecast for

Petaluma CA

Coastal Flood Advisory August 13, 01:34am until August 13, 02:00am
Click here for hazard details and duration
...
  •  
    Coastal Flood Advisory August 13, 01:34am until August 13, 02:00am

    NOW until 2:00am Thu

    Coastal Flood Advisory

  • Overnight

    Low: 54 °F

    Areas Fog

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 72. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 72 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Patchy fog after 9pm. Otherwise, increasing clouds, with a low around 54. Light west southwest wind.

    Low: 54 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 72. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 72 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53. West southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 11am. Otherwise, partly sunny, with a high near 73.

    High: 73 °F

    Areas Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 51.

    Low: 51 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 75.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Overnight
Areas of fog. Otherwise, cloudy, with a low around 54. Calm wind.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 72. Calm wind becoming southwest 5 to 8 mph in the morning.
Thursday Night
Patchy fog after 9pm. Otherwise, increasing clouds, with a low around 54. Light west southwest wind.
Friday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 72. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53. West southwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 73.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 51.
Sunday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 75.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 74.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 76.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Petaluma CA
 38.23°N 122.65°W (Elev. 98 ft)
Last Update:
1:26 am PDT Aug 13, 2026
Forecast Valid:
1am PDT Aug 13, 2026-6pm PDT Aug 19, 2026
 
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