Sonoma State University, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sonoma State University, a community in Sonoma County, California.
Today
83°F
Sunny
Sunny. High near 83, with temperatures falling to around 76 in the afternoon. Southwest wind 1 to 7 mph.
7-day forecast for Sonoma State University
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 1 to 7 mph SW | 0% |
| Tonight | 52°F | Mostly Cloudy then Areas Of Fog | 0 to 5 mph SSW | 0% |
| Sunday | 77°F | Areas Of Fog then Mostly Cloudy | 0 to 6 mph S | 0% |
| Sunday Night | 52°F | Areas Of Fog | 0 to 3 mph SSW | 0% |
| Monday | 77°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph SW | 0% |
| Monday Night | 51°F | Areas Of Fog | 0 to 6 mph W | 0% |
| Tuesday | 78°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph WSW | 0% |
| Tuesday Night | 52°F | Areas Of Fog | 0 to 5 mph WSW | 0% |
| Wednesday | 86°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 55°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Thursday | 89°F | Mostly Sunny | 0 to 6 mph WSW | 0% |
| Thursday Night | 55°F | Partly Cloudy | 0 to 6 mph WSW | 0% |
| Friday | 83°F | Mostly Sunny | 0 to 6 mph SW | 0% |
| Friday Night | 53°F | Partly Cloudy | 1 to 6 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Sonoma State University (38.341, -122.673). Updated through the day.
Growing snapshot for Sonoma State University
Last spring frost
Feb 28
First fall frost
Nov 25
Growing season
271 days
Hardiness zone
9a
More local growing data for Sonoma State University: nearby ZIP 94928 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Petaluma Ap, Ca (7.7 mi from Sonoma State University). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.