Today in Petaluma, CA, the weather is mostly sunny with a high temperature around 74°F and a low near 44°F. The morning may start mostly cloudy but will clear up to sunshine in the afternoon. Winds are light, coming from the north at about 9 mph, with a low chance of rain around 4-5%

. Current conditions show a temperature near 50°F with humidity around 74%, and winds from the north-northwest at 4 mph, occasionally gusting higher

. Overall, expect a pleasant day with mostly clear skies and mild temperatures.