Round Rock, TX Weather & Growing Conditions
Overnight
73°F
Partly Cloudy
Partly cloudy, with a low around 73. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Partly Cloudy | 5 mph S | 0% |
| Saturday | 99°F | Sunny | 0 to 5 mph SSE | 0% |
| Saturday Night | 73°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Sunday | 99°F | Mostly Sunny | 5 mph S | 0% |
| Sunday Night | 74°F | Partly Cloudy | 5 mph SSE | 6% |
| Monday | 99°F | Sunny | 0 to 5 mph SSE | 14% |
| Monday Night | 74°F | Mostly Clear | 0 to 5 mph SSE | 14% |
| Tuesday | 98°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph NNE | 15% |
| Tuesday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph E | 15% |
| Wednesday | 97°F | Mostly Sunny | 5 to 10 mph NE | 11% |
| Wednesday Night | 73°F | Partly Cloudy | 0 to 10 mph E | 3% |
| Thursday | 96°F | Mostly Sunny | 0 to 10 mph ENE | 3% |
| Thursday Night | 72°F | Partly Cloudy | 0 to 10 mph ESE | 3% |
| Friday | 96°F | Mostly Sunny | 0 to 10 mph ENE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Round Rock, TX
Last spring frost
Mar 6
First fall frost
Nov 24
Growing season
259 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, Georgetown Lake, Tx (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.