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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 38.23°N 122.65°W (Text-Only)
NWS Forecast for: Petaluma CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Last Update: 12:26 am PST Dec 5, 2025		Print

  • Overnight

    Overnight: Patchy fog between 3am and 5am. Otherwise, partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Fog


  • Friday

    Friday: Patchy fog between 7am and 9am. Otherwise, sunny, with a high near 63. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Friday
    Night

    Friday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 45. West wind around 5 mph.

    Low: 45 °F

    Partly Cloudy


  • Sunday

    Sunday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny


  • Sunday
    Night

    Sunday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 64.

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday
    Night

    Monday Night: Patchy fog. Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog




    • Overnight: Patchy fog between 3am and 5am. Otherwise, partly cloudy, with a low around 40. Calm wind.

    Friday: Patchy fog between 7am and 9am. Otherwise, sunny, with a high near 63. Calm wind becoming west northwest around 6 mph in the afternoon.

    Friday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 45. Calm wind.

    Saturday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming northwest around 5 mph in the afternoon.

    Saturday Night: Partly cloudy, with a low around 45. West wind around 5 mph.

    Sunday: Partly sunny, with a high near 64.

    Sunday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 44.

    Monday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 64.

    Monday Night: Patchy fog. Otherwise, partly cloudy, with a low around 44.

    Tuesday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 65.

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 46.

    Wednesday: Patchy fog. Otherwise, mostly sunny, with a high near 67.

    Wednesday Night: Patchy fog. Otherwise, partly cloudy, with a low around 46.

    Thursday: Patchy fog. Otherwise, mostly sunny, with a high near 66.


    Petaluma CA
     38.23°N 122.65°W (Elev. 98 ft)

    Visit your local NWS office at: https://www.weather.gov/mtr