| National Weather Service Forecast for:
Petaluma CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
||||||||||||||||||
| Updated: 2:54 pm PST Dec 22, 2025 | ||||||||||||||||||
|
| This Afternoon |
Rain. High near 56. West wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible. |
| Tonight |
Rain. Patchy fog before midnight. Steady temperature around 53. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible. |
| Tuesday |
Rain. High near 56. South southeast wind 8 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible. |
| Tuesday Night |
Rain and possibly a thunderstorm. Low around 48. Breezy, with a south southeast wind 20 to 23 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. |
| Wednesday |
Rain, with thunderstorms also possible after 4pm. High near 56. Southwest wind 7 to 9 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. |
| Wednesday Night |
Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 49. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible. |
| Christmas Day |
Showers and possibly a thunderstorm. High near 52. Chance of precipitation is 100%. |
| Thursday Night |
Rain. Cloudy, with a low around 45. |
| Friday |
Rain before 10am, then showers and possibly a thunderstorm after 10am. Mostly cloudy, with a high near 52. |
| Friday Night |
A chance of rain. Mostly cloudy, with a low around 41. |
| Saturday |
Mostly sunny, with a high near 54. |
| Saturday Night |
Patchy fog. Patchy frost. Otherwise, mostly clear, with a low around 38. |
| Sunday |
Patchy frost. Otherwise, sunny, with a high near 54. |
| Sunday Night |
Patchy fog. Patchy frost. Otherwise, partly cloudy, with a low around 38. |
| Monday |
Patchy frost. Otherwise, mostly sunny, with a high near 54. |
Forecast from NOAA-NWS for Petaluma CA.