Rillito, AZ Weather & Growing Conditions
Overnight
50°F
Mostly Clear
Mostly clear, with a low around 50. East southeast wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Mostly Clear | 3 to 7 mph ESE | 0% |
| Wednesday | 73°F | Sunny | 3 to 8 mph WSW | 0% |
| Wednesday Night | 49°F | Clear | 5 mph E | 0% |
| Thursday | 74°F | Sunny | 1 to 5 mph E | 0% |
| Thursday Night | 52°F | Mostly Clear | 3 mph NE | 0% |
| Friday | 74°F | Sunny | 1 to 6 mph N | 1% |
| Friday Night | 52°F | Mostly Clear | 5 mph NE | 1% |
| Saturday | 75°F | Sunny | 3 to 7 mph NE | 1% |
| Saturday Night | 53°F | Clear | 5 to 10 mph ENE | 1% |
| Sunday | 75°F | Sunny | 5 to 15 mph E | 1% |
| Sunday Night | 52°F | Partly Cloudy | 6 to 12 mph E | 1% |
| Monday | 76°F | Mostly Sunny | 3 to 12 mph ESE | 3% |
| Monday Night | 54°F | Partly Cloudy | 2 to 7 mph E | 5% |
| Tuesday | 75°F | Mostly Sunny | 3 to 7 mph SSW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rillito, AZ
Last spring frost
Feb 23
First fall frost
Dec 6
Growing season
287 days
Hardiness zone
9b
Explore more for Rillito, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Tucson 17 Nw, Az (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.