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

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 >

Hazardous Weather Conditions

Current conditions at

Novato / Gnoss Field (KDVO)

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

Overcast

59°F

15°C

Humidity 87%
Wind Speed NW 4 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Jun 06:35 AM PDT
Extended Forecast for

2 Miles NW Petaluma CA

Coastal Flood Advisory June 17, 07:02am until June 18, 05:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory June 17, 07:02am until June 18, 05:00am

    NOW until 5:00am Thu

    Coastal Flood Advisory

  • Today

    High: 75 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. West southwest wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 72 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 54. Southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 70. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 70 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Areas of fog after 11pm. Otherwise, partly cloudy, with a low around 50.

    Low: 50 °F

    Areas Fog

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 75. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Increasing clouds, with a low around 53. West southwest wind around 6 mph becoming calm in the evening.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 54. Southwest wind 5 to 8 mph becoming calm in the evening.
Juneteenth
Partly sunny, with a high near 70. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Areas of fog after 11pm. Otherwise, partly cloudy, with a low around 50.
Sunday
Widespread fog, mainly before 7am. Otherwise, mostly sunny, with a high near 78.
Sunday Night
Widespread fog, mainly after 5am. Otherwise, partly cloudy, with a low around 50.
Monday
Widespread fog. Otherwise, mostly sunny, with a high near 76.
Monday Night
Widespread fog. Otherwise, partly cloudy, with a low around 51.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Petaluma CA
 38.26°N 122.65°W (Elev. 89 ft)
Last Update:
6:21 am PDT Jun 17, 2026
Forecast Valid:
7am PDT Jun 17, 2026-6pm PDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation