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Petaluma, California Weather Forecast
Petaluma, California Weather
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Weather Forecast for Petaluma, California : Sonoma County
Issued: 2:37 am PDT Nov 1, 2025 Latitude: 38.232417 Longitude: -122.6366524 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Sunny on Today Morning Fog on Tonight Morning Fog on Sunday Morning Fog on Monday 20% chance of rain on Tuesday 70% chance of thunderstorms on Wednesday Fog on Thursday Patchy Fog on Friday
High: 76°F Low: 51°F High: 78°F High: 70°F High: 69°F High: 66°F High: 68°F High: 70°F
Low: 49°F Low: 52°F Low: 56°F Low: 51°F Low: 52°F  
Sunny Morning Fog Morning Fog Morning Fog Rain Thunderstorms Fog Patchy Fog
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Current Conditions at
NAPA - (KAPC)
54°
Cloudy
Fog
as of 9:54 AM PDST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 1/4 Miles
Pressure: 30.13 in.
Flight Rule: LIFR
Wind Data
5 MPH
190° South
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
SANTA ROSA - (KSTS)
52°
Clear
Patches Fog
as of 9:53 AM PDST
Rel. Humidity: 100%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CONCORD - (KCCR)
59°
Clear
as of 9:53 AM PDST
Rel. Humidity: 72%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
VACAVILLE - (KVCB)
59°
Clear
as of 9:53 AM PDST
Rel. Humidity: 77%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
3 MPH
020° North
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.

Morning Fog on Tonight Tonight... Patchy fog after 2am. Otherwise, mostly clear, with a low around 51. West wind around 5 mph becoming calm after midnight.

Morning Fog on Sunday Sunday... Areas of fog before 10am. Otherwise, sunny, with a high near 78. Light west northwest wind.

Patchy Fog on Sunday Night Sunday Night... Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 49. West wind around 6 mph becoming calm in the evening.

Morning Fog on Monday Monday... Areas of fog before 10am. Otherwise, mostly sunny, with a high near 70. Calm wind becoming west southwest around 6 mph in the afternoon.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 52.

20% chance of rain Tuesday Tuesday... A 20 percent chance of rain. Patchy fog before 8am. Otherwise, cloudy, with a high near 69.

20% chance of rain Tuesday Night Tuesday Night... A chance of rain, mainly after 11pm. Cloudy, with a low around 56.

70% chance of thunderstorms Wednesday Wednesday... Showers and possibly a thunderstorm before 11am, then rain likely after 11am. Cloudy, with a high near 66.

10% chance of rain Wednesday Night Wednesday Night... A slight chance of rain before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 51.

Fog on Thursday Thursday... Areas of fog. Otherwise, partly sunny, with a high near 68.

10% chance of rain Thursday Night Thursday Night... A slight chance of rain. Mostly cloudy, with a low around 52.

Patchy Fog on Friday Friday... Patchy fog. Otherwise, partly sunny, with a high near 70.

Current Radar Image


Sun Almanac for Petaluma, California
Sunrise: 07:37 AM
Sunset: 6:11 PM
Civil Sunrise:07:10 AM
Civil Sunset: 6:38 PM
Nautical Sunrise: 06:39 AM
Nautical Sunset: 7:09 PM
Astro Sunrise: 06:08 AM
Astro Sunset: 7:40 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.