Rohnert Park, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rohnert Park, a city in Sonoma County, California.
This Afternoon
79°F
Sunny
Sunny. High near 79, with temperatures falling to around 74 in the afternoon. West southwest wind around 8 mph, with gusts as high as 18 mph.
7-day forecast for Rohnert Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Sunny | 8 mph WSW | 0% |
| Tonight | 52°F | Partly Cloudy then Areas Of Fog | 0 to 6 mph SSW | 0% |
| Saturday | 82°F | Areas Of Fog then Mostly Sunny | 0 to 7 mph SW | 0% |
| Saturday Night | 53°F | Mostly Cloudy then Areas Of Fog | 0 to 5 mph SSW | 0% |
| Sunday | 77°F | Areas Of Fog then Partly Sunny | 0 to 6 mph SSW | 0% |
| Sunday Night | 52°F | Areas Of Fog | 0 to 6 mph SW | 0% |
| Monday | 78°F | Areas Of Fog then Mostly Sunny | 0 to 7 mph W | 0% |
| Monday Night | 52°F | Areas Of Fog | 0 to 7 mph SW | 0% |
| Tuesday | 81°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph SSW | 0% |
| Tuesday Night | 53°F | Partly Cloudy then Patchy Fog | 0 to 6 mph WSW | 0% |
| Wednesday | 89°F | Areas Of Fog then Mostly Sunny | 0 to 6 mph W | 0% |
| Wednesday Night | 56°F | Partly Cloudy | 0 to 6 mph WSW | 0% |
| Thursday | 89°F | Mostly Sunny | 0 to 7 mph SW | 0% |
| Thursday Night | 56°F | Partly Cloudy | 0 to 7 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Rohnert Park (38.348, -122.701). Updated through the day.
Growing snapshot for Rohnert Park
Last spring frost
Feb 28
First fall frost
Nov 25
Growing season
271 days
Hardiness zone
9a
More local growing data for Rohnert Park: 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 Rohnert Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.