Round Rock, AZ Weather & Growing Conditions
Today
57°F
Sunny
Sunny. High near 57, with temperatures falling to around 50 in the afternoon. West wind 9 to 14 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 57°F | Sunny | 9 to 14 mph W | 4% |
| Tonight | 35°F | Mostly Clear | 2 to 9 mph NW | 2% |
| Thursday | 55°F | Mostly Sunny | 5 mph NW | 0% |
| Thursday Night | 35°F | Mostly Cloudy | 3 mph N | 0% |
| Friday | 55°F | Mostly Sunny | 2 to 8 mph N | 1% |
| Friday Night | 34°F | Mostly Clear | 1 to 6 mph N | 1% |
| Saturday | 56°F | Sunny | 1 to 7 mph N | 0% |
| Saturday Night | 35°F | Mostly Clear | 1 to 6 mph NE | 0% |
| Sunday | 57°F | Sunny | 1 to 6 mph NE | 0% |
| Sunday Night | 37°F | Mostly Clear | 3 mph E | 0% |
| Monday | 58°F | Mostly Sunny | 3 mph W | 0% |
| Monday Night | 38°F | Partly Cloudy | 2 mph E | 1% |
| Tuesday | 58°F | Mostly Sunny | 2 mph W | 1% |
| Tuesday Night | 38°F | Partly Cloudy | 2 mph E | 0% |
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 Nov 4, 2026.