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.
Today
73°F
Sunny
Sunny, with a high near 73. West northwest wind around 5 mph.
7-day forecast for Santa Rosa Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Sunny | 5 mph WNW | 0% |
| Tonight | 54°F | Partly Cloudy | 5 to 15 mph NNE | 0% |
| Thursday | 78°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Thursday Night | 57°F | Mostly Clear | 5 to 15 mph N | 0% |
| Friday | 81°F | Sunny | 10 to 15 mph NNE | 0% |
| Friday Night | 61°F | Clear | 10 to 20 mph NNE | 0% |
| Saturday | 82°F | Sunny | 10 to 20 mph NNE | 0% |
| Saturday Night | 61°F | Mostly Clear | 10 to 15 mph NNE | 0% |
| Sunday | 82°F | Sunny | 5 to 15 mph NE | 0% |
| Sunday Night | 61°F | Partly Cloudy | 5 to 15 mph NNE | 0% |
| Monday | 81°F | Mostly Sunny | 5 mph NE | 0% |
| Monday Night | 59°F | Partly Cloudy | 5 mph NNW | 1% |
| Tuesday | 78°F | Sunny | 0 to 5 mph SSE | 1% |
| Tuesday Night | 58°F | Mostly Clear | 0 to 5 mph N | 4% |
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 Nov 4, 2026.