Rohnert Park, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rohnert Park, a city in Sonoma County, California.
Today
62°F
Light Rain
Rain. Mostly cloudy. High near 62, with temperatures falling to around 56 in the afternoon. South southeast wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Rohnert Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 62°F | Light Rain | 3 to 7 mph SSE | 93% |
| Tonight | 44°F | Chance Light Rain then Patchy Fog | 1 to 6 mph ENE | 39% |
| Wednesday | 68°F | Patchy Fog then Mostly Sunny | 1 to 8 mph NW | 1% |
| Wednesday Night | 43°F | Mostly 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 | Patchy Fog | 0 to 3 mph NW | 0% |
| Friday | 73°F | Patchy Fog then Mostly Sunny | 2 mph NW | 0% |
| Friday Night | 44°F | Mostly Clear then Patchy Fog | 2 mph NW | 0% |
| Saturday | 75°F | Patchy Fog then Sunny | 0 to 3 mph ENE | 0% |
| Saturday Night | 45°F | Partly Cloudy then Patchy Fog | 0 to 3 mph WNW | 0% |
| Sunday | 74°F | Patchy Fog then Mostly Sunny | 0 to 3 mph NW | 0% |
| Sunday Night | 46°F | Areas Of Fog | 0 to 3 mph NW | 0% |
| Monday | 72°F | Areas Of Fog then Partly Sunny | 0 to 5 mph WNW | 3% |
| Monday Night | 45°F | Areas Of Fog | 0 to 5 mph WNW | 3% |
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 Nov 3, 2026.