Santa Rosa, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Santa Rosa, a community in Pima County, Arizona.
This Afternoon
98°F
Sunny
Sunny, with a high near 98. West southwest wind around 5 mph.
7-day forecast for Santa Rosa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 5 mph WSW | 0% |
| Tonight | 72°F | Mostly Clear | 5 mph SW | 0% |
| Saturday | 98°F | Sunny | 1 to 5 mph SW | 0% |
| Saturday Night | 72°F | Mostly Clear | 1 to 5 mph SW | 0% |
| Sunday | 97°F | Sunny | 5 to 9 mph SSW | 0% |
| Sunday Night | 75°F | Partly Cloudy | 3 to 8 mph SSW | 0% |
| Monday | 96°F | Mostly Sunny | 3 to 12 mph S | 1% |
| Monday Night | 72°F | Mostly Clear | 2 to 8 mph SSW | 6% |
| Tuesday | 96°F | Sunny | 2 to 6 mph S | 8% |
| Tuesday Night | 74°F | Partly Cloudy | 1 to 6 mph SSW | 8% |
| Wednesday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph ENE | 10% |
| Wednesday Night | 76°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph E | 10% |
| Thursday | 96°F | Slight Chance Showers And Thunderstorms | 2 to 8 mph ENE | 21% |
| Thursday Night | 76°F | Slight Chance Showers And Thunderstorms | 5 mph ENE | 21% |
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 Sep 19, 2026.