Thrall, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thrall, a city in Williamson County, Texas.
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 105. South southeast wind around 10 mph.
7-day forecast for Thrall
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 10 mph SSE | 1% |
| Tonight | 77°F | Mostly Clear | 5 to 10 mph S | 2% |
| Wednesday | 99°F | Mostly Sunny | 5 to 10 mph S | 0% |
| Wednesday Night | 76°F | Mostly Clear | 5 to 10 mph S | 1% |
| Thursday | 99°F | Sunny | 5 to 10 mph S | 3% |
| Thursday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 3% |
| Friday | 97°F | Sunny | 5 mph S | 7% |
| Friday Night | 75°F | Mostly Clear | 5 to 10 mph S | 7% |
| Saturday | 97°F | Sunny | 5 mph SSE | 6% |
| Saturday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 6% |
| Sunday | 97°F | Sunny | 5 to 10 mph S | 5% |
| Sunday Night | 75°F | Mostly Clear | 5 to 10 mph SSE | 6% |
| Monday | 97°F | Sunny | 5 to 10 mph S | 6% |
| Monday Night | 76°F | Mostly Clear | 10 mph S | 6% |
Forecast source: National Weather Service (api.weather.gov) for Thrall (30.588, -97.298). Updated through the day.
Growing snapshot for Thrall
Last spring frost
Mar 8
First fall frost
Nov 21
Growing season
257 days
Hardiness zone
9a
More local growing data for Thrall: nearby ZIP 76578 weather · frost dates · planting calendar · Texas frost dates
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Hutto
Jarrell
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Round Rock
Santa Rita Ranch
Serenada
Sonterra
Taylor
Weir
Climate data from the nearest NOAA station, Taylor 1Nw, Tx (11.1 mi from Thrall). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.