94952 Weather (Petaluma, CA)

Weather forecast for: Petaluma CA

Last Update: 1:26 am PDT Sep 22, 2026

Overnight: Areas of fog. Otherwise, mostly cloudy, with a steady temperature around 54. Calm wind.

Tuesday: Areas of fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.

Tuesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 52. Calm wind.

Wednesday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night: Mostly clear, with a low around 54. West wind 5 to 7 mph becoming calm in the evening.

Thursday: Mostly sunny, with a high near 85.

Thursday Night: Partly cloudy, with a low around 57.

Friday: Mostly sunny, with a high near 77.

Friday Night: Partly cloudy, with a low around 51.

Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 77.

Saturday Night: Patchy fog. Otherwise, partly cloudy, with a low around 50.

Sunday: Patchy fog. Otherwise, mostly sunny, with a high near 76.

Sunday Night: Mostly clear, with a low around 51.

Monday: Sunny, with a high near 81.