Marine Weather Net

Petaluma, CA Weather Forecast




Petaluma, California

 Lat: 38.23N, Lon: 122.64W

Current Conditions Updated: 1154 PM PDT MON AUG 24 2026

Clear


Temp: 59°F
  • Humidity:
  • 89%
  • Winds:
  • 8 MPH WSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30 in.
  • Dewpoint:
  • 56°F
  • Heat index:
  • 59°F

  • Sunrise:
  • 6:32 AM PDT
  • Sunset:
  • 7:49 PM PDT
  • Moonrise:
  • 6:46 PM PDT
  • Moonset:
  • 3:54 AM PDT

TONIGHT

PARTLY CLOUDY
Lo: 55°F

TUESDAY

PARTLY CLOUDY
Hi: 80°F
Lo: 55°F

WEDNESDAY

SUNNY

Hi: 90°F
Lo: 55°F

THURSDAY

PARTLY CLOUDY
Hi: 90°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 902 PM PDT Mon Aug 24 2026

Rest Of Tonight...Partly cloudy late in the evening then becoming mostly cloudy. Lows in the 50s. Southwest winds 5 to 15 mph.
Tuesday...Mostly cloudy in the morning then becoming partly cloudy. Haze in the morning. Highs in the mid 70s to lower 90s. Southwest winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.
Tuesday Night...Partly cloudy in the evening then becoming mostly cloudy. Lows in the 50s. Southwest winds 10 to 20 mph... Becoming 5 to 10 mph after midnight.
Wednesday...Mostly cloudy in the morning then becoming sunny. Highs in the upper 70s to lower 90s. Southwest winds 5 to 15 mph.
Wednesday Night...Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s to lower 60s. West winds 10 to 20 mph.
Thursday...Mostly cloudy in the morning then becoming partly cloudy. Highs in the upper 70s to lower 90s.
Thursday Night And Friday...Partly cloudy. Lows in the 50s to lower 60s. Highs in the 70s to 80s.
Friday Night...Mostly clear. Lows in the 40s to upper 50s.
Saturday...Partly cloudy in the morning then becoming sunny. Highs in the lower 70s to mid 80s.
Saturday Night...Mostly clear. Lows in the upper 40s to mid 50s.
Sunday...Partly cloudy in the morning then becoming sunny. Patchy fog. Highs in the upper 60s to mid 80s.
Sunday Night...Mostly clear except patchy fog. Lows in the upper 40s to mid 50s.
Monday...Mostly cloudy in the morning then becoming sunny. Highs in the mid 60s to lower 80s. && temperature / precipitation santa rosa 53 86 53 90 / san rafael 57 87 58 90 / napa 55 81 56 83 /
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