Marine Weather Net

Petaluma, CA Weather Forecast




Petaluma, California

 Lat: 38.23N, Lon: 122.64W

Current Conditions Updated: 354 PM PDT SAT APR 18 2026

Clear


Temp: 74°F
  • Humidity:
  • 23%
  • Winds:
  • 6 MPH SW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.93 in.
  • Dewpoint:
  • 34°F
  • Heat index:
  • 76°F

  • Sunrise:
  • 6:29 AM PDT
  • Sunset:
  • 7:48 PM PDT
  • Moonrise:
  • 6:55 AM PDT
  • Moonset:
  • 9:56 PM PDT

REST OF TODAY

MOSTLY CLOUDY
Hi: 79°F
Lo: 45°F

SUNDAY

PARTLY CLOUDY
Hi: 65°F
Lo: 45°F

MONDAY

CHANCE OF SHOWERS
Hi: 69°F
Lo: 45°F
Precip: 70%

TUESDAY

CHANCE OF T-STORM
Hi: 55°F
Lo: 45°F
Weather Forecast In Detail:
Forecast Issued: 302 PM PDT Sat Apr 18 2026

Rest Of Today...Mostly cloudy. Highs in the 60s to upper 70s. Southwest winds 5 to 10 mph.
Tonight...Mostly cloudy. Areas of fog after midnight. Lows in the 40s to lower 50s. Southwest winds up to 5 mph.
Sunday...Mostly cloudy in the morning then becoming partly cloudy. Highs in the 60s to lower 70s. Southwest winds 5 to 15 mph.
Sunday Night...Mostly cloudy. A chance of showers after midnight. Lows in the 40s to mid 50s. Southwest winds 5 to 15 mph. Chance of showers 50 percent.
Monday...A chance of showers in the morning, then showers likely in the afternoon. Highs in the 50s to upper 60s. Southeast winds 5 to 15 mph. Chance of showers 70 percent.
Monday Night...Patchy fog. Showers. Lows in the 40s to mid 50s.
Tuesday...Showers and a chance of thunderstorms. Highs in the 50s to mid 60s.
Tuesday Night...Showers likely and a slight chance of thunderstorms. Lows in the 40s to lower 50s.
Wednesday...Mostly cloudy. A chance of showers. Highs in the 50s to upper 60s.
Wednesday Night...Mostly clear. Lows in the 40s to lower 50s. Highs in the lower 60s to mid 70s. && temperature / precipitation santa rosa 77 44 71 / 10 san rafael 76 51 70 / napa 75 48 70 /
Thursday...Mostly clear. Lows in the 40s to lower 50s. Highs in the lower 60s to mid 70s. && temperature / precipitation santa rosa 77 44 71 / 10 san rafael 76 51 70 / napa 75 48 70 /
Friday...Mostly clear. Lows in the 40s to lower 50s. Highs in the lower 60s to mid 70s. && temperature / precipitation santa rosa 77 44 71 / 10 san rafael 76 51 70 / napa 75 48 70 /
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