San Tan Valley, AZ Weather & Growing Conditions
Today
107°F
Sunny
Sunny, with a high near 107. West wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 107°F | Sunny | 5 to 10 mph W | 3% |
| Tonight | 84°F | Patchy Blowing Dust | 5 to 15 mph SSW | 6% |
| Wednesday | 105°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph W | 11% |
| Wednesday Night | 82°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph E | 11% |
| Thursday | 106°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph WSW | 12% |
| Thursday Night | 82°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph WSW | 12% |
| Friday | 108°F | Sunny | 0 to 5 mph SW | 8% |
| Friday Night | 83°F | Partly Cloudy | 5 mph SSW | 8% |
| Saturday | 109°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 12% |
| Saturday Night | 83°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 12% |
| Sunday | 106°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Sunday Night | 81°F | Chance Showers And Thunderstorms | 5 mph SSW | 31% |
| Monday | 103°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 38% |
| Monday Night | 79°F | Chance Showers And Thunderstorms | 5 mph S | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Tan Valley, AZ
Last spring frost
Feb 1
First fall frost
Dec 11
Growing season
315 days
Hardiness zone
9b
Explore more for San Tan Valley, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Chandler Heights, Az (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.