Santa Rosa Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Santa Rosa Valley, a community in Ventura County, California.
Overnight
60°F
Mostly Cloudy
Mostly cloudy, with a low around 60. North wind around 0 mph.
7-day forecast for Santa Rosa Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Mostly Cloudy | 0 mph | 0% |
| Tuesday | 84°F | Sunny | 0 to 10 mph WSW | 0% |
| Tuesday Night | 60°F | Patchy Fog | 0 to 10 mph WSW | 0% |
| Wednesday | 83°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 61°F | Patchy Fog | 0 to 10 mph SW | 0% |
| Thursday | 83°F | Sunny | 0 to 10 mph SW | 0% |
| Thursday Night | 61°F | Patchy Fog | 0 to 10 mph SSE | 0% |
| Friday | 83°F | Sunny | 0 to 10 mph SW | 0% |
| Friday Night | 62°F | Mostly Clear | 0 to 10 mph WSW | 0% |
| Saturday | 84°F | Sunny | 0 to 10 mph SW | 0% |
| Saturday Night | 62°F | Mostly Clear | 0 to 10 mph S | 0% |
| Sunday | 83°F | Sunny | 0 to 10 mph S | 0% |
| Sunday Night | 62°F | Mostly Clear | 0 to 10 mph SSE | 0% |
| Monday | 81°F | Sunny | 0 to 10 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Santa Rosa Valley (34.246, -118.902). Updated through the day.
Growing snapshot for Santa Rosa Valley
Last spring frost
Dec 31
First fall frost
Dec 28
Growing season
365 days
Hardiness zone
10a
More local growing data for Santa Rosa Valley: nearby ZIP 91360 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Camarillo
Casa Conejo
Channel Islands Beach
El Rio
Fillmore
Frazier Park
Lake of the Woods
Lake Sherwood
Meiners Oaks
Mira Monte
Moorpark
Oak Park
Oak View
Ojai
Oxnard
Piru
Port Hueneme
San Buenaventura (Ventura)
Santa Paula
Saticoy
Simi Valley
Somis
Thousand Oaks
Westlake Village
Climate data from the nearest NOAA station, Camarillo Ap, Ca (12 mi from Santa Rosa Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.