Santa Rosa, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Santa Rosa, a community in Pima County, Arizona.
Today
70°F
Sunny
Sunny, with a high near 70. North northeast wind 2 to 6 mph.
7-day forecast for Santa Rosa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Sunny | 2 to 6 mph NNE | 0% |
| Tonight | 52°F | Mostly Clear | 2 mph SSW | 0% |
| Wednesday | 74°F | Sunny | 3 mph WSW | 0% |
| Wednesday Night | 52°F | Mostly Clear | 1 mph N | 0% |
| Thursday | 73°F | Sunny | 3 mph NNE | 0% |
| Thursday Night | 53°F | Mostly Clear | 1 mph NNE | 0% |
| Friday | 75°F | Sunny | 1 to 5 mph NNE | 0% |
| Friday Night | 54°F | Mostly Clear | 3 mph NNE | 0% |
| Saturday | 75°F | Sunny | 3 to 9 mph NNE | 1% |
| Saturday Night | 54°F | Mostly Clear | 2 to 6 mph NE | 1% |
| Sunday | 78°F | Sunny | 5 to 12 mph ENE | 4% |
| Sunday Night | 56°F | Partly Cloudy | 3 mph ENE | 7% |
| Monday | 77°F | Mostly Sunny | 3 mph ESE | 7% |
| Monday Night | 57°F | Partly Cloudy | 1 mph NNW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Santa Rosa (32.332, -112.046). Updated through the day.
Growing snapshot for Santa Rosa
Last spring frost
Apr 26
First fall frost
Nov 4
Growing season
195 days
Hardiness zone
9a
More local growing data for Santa Rosa: nearby ZIP 85634 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Kitt Peak, Az (25.1 mi from Santa Rosa). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.