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

Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Current conditions at

Novato / Gnoss Field (KDVO)

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

Overcast

70°F

21°C

Humidity 68%
Wind Speed SW 10 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 59°F (15°C)
Visibility 7.00 mi
Last update 13 Aug 11:15 AM PDT
Extended Forecast for

Petaluma CA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 75. West wind 10 to 15 mph, with gusts as high as 18 mph.

    High: 75 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 55. West wind 7 to 13 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 82. Light west wind increasing to 6 to 11 mph in the afternoon.

    High: 82 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. West southwest wind 7 to 11 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Breezy, with a west wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 86 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Breezy.

    Low: 58 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 75. West wind 10 to 15 mph, with gusts as high as 18 mph.
Tonight
Increasing clouds, with a low around 55. West wind 7 to 13 mph.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 82. Light west wind increasing to 6 to 11 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 55. West southwest wind 7 to 11 mph.
Friday
Sunny, with a high near 86. Breezy, with a west wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 29 mph.
Friday Night
Mostly clear, with a low around 58. Breezy.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Petaluma CA
 38.23°N 122.65°W (Elev. 98 ft)
Last Update:
11:00 am PDT Aug 13, 2025
Forecast Valid:
11am PDT Aug 13, 2025-6pm PDT Aug 19, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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