Round Rock, AZ Weather & Growing Conditions
Today
100°F
Sunny
Sunny, with a high near 100. West wind 5 to 14 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 5 to 14 mph W | 0% |
| Tonight | 65°F | Mostly Clear | 3 to 14 mph SW | 1% |
| Wednesday | 98°F | Sunny | 5 to 10 mph SW | 0% |
| Wednesday Night | 65°F | Mostly Clear | 6 to 10 mph NE | 0% |
| Thursday | 99°F | Sunny | 5 to 8 mph SW | 0% |
| Thursday Night | 65°F | Mostly Clear | 8 mph SW | 0% |
| Friday | 99°F | Sunny | 5 to 9 mph SW | 1% |
| Friday Night | 65°F | Mostly Clear | 3 to 9 mph NE | 0% |
| Saturday | 98°F | Sunny | 5 to 8 mph SW | 1% |
| Saturday Night | 66°F | Mostly Clear | 5 to 13 mph SE | 1% |
| Sunday | 97°F | Sunny | 5 to 9 mph SW | 4% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 7 to 10 mph SW | 11% |
| Monday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 15% |
| Monday Night | 64°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 10 mph SW | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Round Rock, AZ
Last spring frost
May 3
First fall frost
Oct 17
Growing season
163 days
Hardiness zone
7a
Explore more for Round Rock, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Lukachukai, Az (16.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.