Rohnert Park, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Rohnert Park, a city in Sonoma County, California.

Overnight

52°F

Patchy Fog

Patchy fog after 5am. Partly cloudy, with a low around 52. Wind around 0 mph.

7-day forecast for Rohnert Park

When	Temp	Forecast	Wind	Precip
Overnight	52°F	Patchy Fog	0 mph	0%
Tuesday	88°F	Patchy Fog then Sunny	0 to 8 mph WSW	0%
Tuesday Night	51°F	Areas Of Fog	0 to 5 mph W	0%
Wednesday	85°F	Areas Of Fog then Mostly Sunny	0 to 7 mph W	0%
Wednesday Night	51°F	Areas Of Fog	0 to 6 mph WSW	0%
Thursday	82°F	Areas Of Fog then Mostly Sunny	0 to 7 mph W	0%
Thursday Night	51°F	Patchy Fog	0 to 7 mph NW	0%
Friday	89°F	Patchy Fog then Mostly Sunny	0 to 7 mph W	0%
Friday Night	53°F	Partly Cloudy	0 to 7 mph SW	0%
Saturday	88°F	Sunny	0 to 7 mph WSW	0%
Saturday Night	55°F	Mostly Clear	0 to 7 mph SW	0%
Sunday	87°F	Patchy Fog then Sunny	0 to 7 mph SW	0%
Sunday Night	53°F	Mostly Clear then Areas Of Fog	0 to 7 mph SW	0%
Monday	80°F	Areas Of Fog then Sunny	0 to 8 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

More local growing data for Rohnert Park: nearby ZIP 94928 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

Bloomfield Bodega Bodega Bay Boyes Hot Springs Calistoga Carmet Cazadero Cloverdale Cotati El Verano Eldridge Fetters Hot Springs-Agua Caliente Forestville Fulton Geyserville Glen Ellen Graton Guerneville Healdsburg Jenner Kenwood Larkfield-Wikiup Monte Rio Occidental Penngrove Petaluma Salmon Creek Santa Rosa Sea Ranch Sebastopol

All California locations ›

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 Aug 4, 2026.