Round Rock, TX Weather & Growing Conditions
Overnight
51°F
Mostly Clear
Mostly clear, with a low around 51. North northwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 5 mph NNW | 0% |
| Wednesday | 73°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 51°F | Clear | 0 mph | 0% |
| Thursday | 78°F | Sunny | 0 to 5 mph S | 0% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 15 mph W | 1% |
| Friday | 70°F | Sunny | 5 to 15 mph N | 0% |
| Friday Night | 50°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Saturday | 66°F | Partly Sunny | 5 to 10 mph N | 9% |
| Saturday Night | 48°F | Slight Chance Rain Showers | 5 mph N | 23% |
| Sunday | 65°F | Partly Sunny | 5 mph N | 11% |
| Sunday Night | 45°F | Mostly Clear | 0 mph | 6% |
| Monday | 68°F | Sunny | 0 mph | 3% |
| Monday Night | 46°F | Mostly Clear | 0 mph | 3% |
| Tuesday | 70°F | Mostly Sunny | 0 to 5 mph S | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Round Rock, TX
Last spring frost
Mar 11
First fall frost
Nov 20
Growing season
254 days
Hardiness zone
9a
Explore more for Round Rock, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Austin Great Hills, Tx (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.