Marine Weather Net

Petaluma, CA Weather Forecast




Petaluma, California

 Lat: 38.23N, Lon: 122.64W

Current Conditions Updated: 1054 AM PDT WED MAY 27 2026

Clear


Temp: 64°F
  • Humidity:
  • 62%
  • Winds:
  • 9 MPH SSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.8 in.
  • Dewpoint:
  • 51°F
  • Heat index:
  • 64°F

  • Sunrise:
  • 5:49 AM PDT
  • Sunset:
  • 8:23 PM PDT
  • Moonrise:
  • 5:23 PM PDT
  • Moonset:
  • 3:29 AM PDT

REST OF TODAY

CHANCE OF SHOWERS
Hi: 65°F
Lo: 50°F

THURSDAY

CHANCE OF SHOWERS
Hi: 65°F
Lo: 50°F

FRIDAY

SUNNY

Hi: 65°F
Lo: 50°F

SATURDAY

SUNNY

Hi: 80°F
Lo: 45°F
Weather Forecast In Detail:
Forecast Issued: 1102 AM PDT Wed May 27 2026

Rest Of Today...Partly cloudy late in the morning then becoming mostly cloudy. A slight chance of showers in the afternoon. Highs in the 60s to lower 70s. Southwest winds 5 to 10 mph.
Tonight...Mostly cloudy. A chance of showers. Patchy fog after midnight. Lows in the upper 40s to mid 50s. South winds 5 to 10 mph...Becoming southeast after midnight.
Thursday...Partly cloudy. A slight chance of showers in the morning. Highs in the 60s to mid 70s. East winds up to 5 mph increasing to southeast 10 to 15 mph in the afternoon.
Thursday Night...Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 40s to mid 50s. West winds 5 to 15 mph. Chance of showers 20 percent.
Friday...Mostly cloudy in the morning then becoming sunny. Highs in the lower 60s to mid 70s. Southwest winds 10 to 15 mph.
Friday Night...Mostly clear in the evening then becoming partly cloudy. Patchy fog. Lows in the upper 40s to mid 50s.
Saturday...Partly cloudy in the morning then becoming sunny. Highs in the upper 60s to lower 80s.
Saturday Night...Clear. Lows in the mid 40s to lower 50s.
Sunday...Sunny. Highs in the upper 60s to mid 80s.
Sunday Night...Clear. Lows in the 40s to upper 50s.
Monday And Monday Night...Mostly clear. Highs in the lower 70s to mid 80s. Lows in the upper 40s to lower 60s.
Tuesday...Partly cloudy in the morning then becoming sunny. Highs in the 70s to 80s. && temperature / precipitation santa rosa 73 49 74 / 20 50 10 san rafael 69 52 71 / 10 40 40 napa 69 50 71 / 20 30 20
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