Smithville, TX Weather & Growing Conditions
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 105. South wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 5 to 10 mph S | 3% |
| Tonight | 77°F | Mostly Clear | 5 to 10 mph S | 3% |
| Wednesday | 101°F | Mostly Sunny | 5 to 10 mph S | 2% |
| Wednesday Night | 76°F | Mostly Clear | 0 to 10 mph S | 1% |
| Thursday | 100°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Thursday Night | 76°F | Mostly Clear | 0 to 10 mph SSE | 5% |
| Friday | 99°F | Mostly Sunny | 0 to 5 mph SSE | 12% |
| Friday Night | 75°F | Mostly Clear | 0 to 5 mph SSE | 12% |
| Saturday | 97°F | Sunny | 0 to 5 mph SSE | 9% |
| Saturday Night | 76°F | Mostly Clear | 0 to 5 mph SSE | 6% |
| Sunday | 97°F | Sunny | 0 to 10 mph SSE | 8% |
| Sunday Night | 76°F | Mostly Clear | 0 to 10 mph SSE | 8% |
| Monday | 98°F | Mostly Sunny | 0 to 10 mph S | 5% |
| Monday Night | 76°F | Mostly Clear | 5 to 10 mph S | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Smithville, TX
Last spring frost
Mar 12
First fall frost
Nov 19
Growing season
251 days
Hardiness zone
9a
Explore more for Smithville, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Smithville, Tx (1.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.