Sun Valley, AZ Weather & Growing Conditions
Tonight
56°F
Mostly Clear
Mostly clear, with a low around 56. Southeast wind 3 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Mostly Clear | 3 to 8 mph SE | 4% |
| Saturday | 82°F | Sunny | 3 to 8 mph S | 3% |
| Saturday Night | 53°F | Mostly Clear | 6 mph S | 1% |
| Sunday | 80°F | Sunny | 3 to 8 mph W | 0% |
| Sunday Night | 54°F | Mostly Cloudy | 6 mph SE | 0% |
| Monday | 81°F | Mostly Sunny | 5 to 9 mph S | 1% |
| Monday Night | 56°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 to 7 mph SE | 15% |
| Tuesday | 79°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 38% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 6 to 9 mph SE | 30% |
| Wednesday | 77°F | Slight Chance Showers And Thunderstorms | 6 mph E | 24% |
| Wednesday Night | 57°F | Slight Chance Showers And Thunderstorms | 7 mph E | 20% |
| Thursday | 77°F | Slight Chance Showers And Thunderstorms | 7 mph SE | 35% |
| Thursday Night | 57°F | Chance Showers And Thunderstorms | 8 mph SE | 37% |
| Friday | 77°F | Chance Showers And Thunderstorms | 5 to 8 mph SE | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sun Valley, AZ
Last spring frost
Apr 22
First fall frost
Oct 24
Growing season
184 days
Hardiness zone
7a
Explore more for Sun Valley, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Holbrook, Az (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.