Sonoma, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sonoma, a city in Sonoma County, California.
This Afternoon
60°F
Chance Light Rain
A chance of rain. Mostly cloudy. High near 60, with temperatures falling to around 55 in the afternoon. East southeast wind around 3 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Sonoma
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Chance Light Rain | 3 mph ESE | 53% |
| Tonight | 44°F | Chance Light Rain then Patchy Fog | 5 mph NE | 50% |
| Wednesday | 68°F | Patchy Fog then Sunny | 2 to 8 mph NW | 1% |
| Wednesday Night | 43°F | Partly Cloudy then Patchy Fog | 2 to 6 mph NW | 0% |
| Thursday | 72°F | Patchy Fog then Sunny | 3 mph NW | 0% |
| Thursday Night | 43°F | Mostly Clear | 2 mph NW | 0% |
| Friday | 74°F | Sunny | 2 mph WSW | 0% |
| Friday Night | 45°F | Mostly Clear | 1 mph NNW | 0% |
| Saturday | 75°F | Sunny | 0 to 3 mph E | 0% |
| Saturday Night | 45°F | Mostly Clear | 2 mph NW | 0% |
| Sunday | 74°F | Patchy Fog then Mostly Sunny | 2 mph NW | 0% |
| Sunday Night | 46°F | Mostly Cloudy then Patchy Fog | 1 mph NW | 0% |
| Monday | 72°F | Patchy Fog then Partly Sunny | 1 to 5 mph WNW | 2% |
| Monday Night | 45°F | Mostly Cloudy | 0 to 3 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Sonoma (38.290, -122.460). Updated through the day.
Growing snapshot for Sonoma
Last spring frost
Mar 2
First fall frost
Nov 27
Growing season
270 days
Hardiness zone
9b
More local growing data for Sonoma: nearby ZIP 95476 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Sonoma, Ca (3 mi from Sonoma). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.