Petaluma, California Weather Forecast
Today in Petaluma: clear skies with a high near 71°F and a low around 48°F. Rain chance 1%. No day tops a 20% rain chance through Thursday. Highs run 65 to 74°F through Thursday.
Forecast updated 1:05 AM PDT, Oct 23
Active Weather Alerts
7-Day Forecast for Petaluma
Today 10/23
71°48°
Sat 10/24
74°43°
Sun 10/25
71°41°
Mon 10/26
67°44°
Tue 10/27
68°42°
Wed 10/28
66°42°
Thu 10/29
65°43°
Next 24 Hours
| Now | 8 PM | 9 PM | 10 PM | 11 PM | Sat12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky | |  | | | | | | | | |  | | | | | | | | | | | | | |
| Temp | 59° | 56° | 54° | 53° | 52° | 52° | 50° | 49° | 48° | 47° | 45° | 45° | 43° | 43° | 49° | 57° | 63° | 68° | 72° | 74° | 74° | 72° | 68° | 64° |
| Rain | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Wind | WNW 2 | W 2 | WNW 2 | WNW 2 | WNW 3 | NW 3 | NW 3 | W 2 | WNW 2 | WNW 1 | W 1 | NW 1 | WNW 1 | W 1 | W 1 | SE 1 | ESE 1 | SSE 1 | SSW 1 | WSW 1 | W 3 | W 5 | W 6 | W 5 |
Growing Conditions
Growing degree days
3,068
since Apr 1, base 50°F
Rain, last 30 days
0.07 in
model analysis
Rain, year to date
16.03 in
since Jan 1
2-inch soil temperature
60°F
yesterday, daily average
Reference ET, last 7 days
0.68 in
FAO-56 grass reference
Through Oct 22. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Petaluma →
Current Stats & Observations
NWS Forecast
About Petaluma Weather
Petaluma sits at about 20 feet above sea level in Sonoma County, California. About 66,929 people live in the Petaluma area. Official forecasts and warnings for the area come from the National Weather Service MTR office, and the nearest NEXRAD radar site is KDAX. The city is in USDA plant hardiness zone 9b, where the coldest winter night typically falls between 25 to 30°F.
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