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    • Tonight

      Sep 30

      48° Lo F
      Increasing cloudiness
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sat

      Oct 1

      72° /48°
      Cool with clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      66° /44°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      65° /50°
      Cool with periods of sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Oct 4

      71° /46°
      Cool with clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Friday
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    Forecast Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Cloudy
    Temp (°F) 60° 60° 58° 57° 55° 54° 53° 52°
    RealFeel® 55° 57° 56° 54° 53° 52° 51° 50°
    Wind (mph) 12 W 8 W 7 W 7 WNW 7 WNW 7 WNW 6 WNW 6 WNW
    precip
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 22% 25% 25% 25% 25% 25% 25% 95%
    Humidity 53% 54% 60% 64% 69% 73% 77% 80%
    Dew Point 43° 43° 44° 45° 46° 46° 46° 46°
    Temp °F
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    65° 60° 55° 50°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 70° 80° N/A 71°
    Low 48° 50° N/A 53°

    Sunrise/Sunset

    • Sunrise: 7:06 AM
    • Sunset: 6:54 PM
    • Duration: 11:48 hr

    Moonrise/Moonset

    • Moonrise: 6:44 AM
    • Moonset: 7:02 PM
    • Duration: 12:18 hr
    Astronomy

    Petaluma Weather Report

    Cooler air, showers to aid in wildfire efforts across California this weekend

    September 30, 2016; 6:54 PM ET

    Improving weather over the next several days will aid officials in battling wildfires across California. More >

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps