Rillito, AZ Weather & Growing Conditions
Today
104°F
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 104. Heat index values as high as 106. West wind 5 to 12 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 104°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 12 mph W | 21% |
| Tonight | 80°F | Chance Showers And Thunderstorms | 3 to 10 mph SE | 25% |
| Wednesday | 102°F | Sunny then Chance Showers And Thunderstorms | 2 to 9 mph W | 26% |
| Wednesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 8 mph SE | 26% |
| Thursday | 103°F | Sunny then Slight Chance Showers And Thunderstorms | 2 to 9 mph W | 14% |
| Thursday Night | 79°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 7 mph SSW | 14% |
| Friday | 105°F | Sunny then Chance Showers And Thunderstorms | 3 to 7 mph WSW | 25% |
| Friday Night | 79°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph S | 25% |
| Saturday | 105°F | Chance Showers And Thunderstorms | 3 to 7 mph W | 29% |
| Saturday Night | 79°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph SSW | 29% |
| Sunday | 103°F | Chance Showers And Thunderstorms | 3 to 8 mph W | 38% |
| Sunday Night | 77°F | Chance Showers And Thunderstorms | 3 to 7 mph S | 38% |
| Monday | 100°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 46% |
| Monday Night | 76°F | Chance Showers And Thunderstorms | 5 to 8 mph S | 46% |
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 Aug 4, 2026.