Smithville, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithville, a city in Bastrop County, Texas.
Overnight
52°F
Mostly Clear
Mostly clear, with a low around 52. Northwest wind around 0 mph.
7-day forecast for Smithville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Mostly Clear | 0 mph | 0% |
| Wednesday | 75°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 50°F | Clear | 0 mph | 0% |
| Thursday | 80°F | Sunny | 0 to 5 mph SSE | 0% |
| Thursday Night | 57°F | Partly Cloudy | 0 to 10 mph N | 3% |
| Friday | 75°F | Mostly Sunny | 5 to 10 mph N | 1% |
| Friday Night | 52°F | Partly Cloudy | 0 to 10 mph N | 0% |
| Saturday | 71°F | Partly Sunny | 5 to 10 mph NNE | 8% |
| Saturday Night | 49°F | Slight Chance Rain Showers | 0 to 5 mph N | 21% |
| Sunday | 67°F | Partly Sunny | 5 to 10 mph NNE | 11% |
| Sunday Night | 45°F | Partly Cloudy | 0 mph | 4% |
| Monday | 70°F | Sunny | 0 to 5 mph ENE | 3% |
| Monday Night | 46°F | Mostly Clear | 0 mph | 3% |
| Tuesday | 73°F | Mostly Sunny | 0 to 5 mph ESE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Smithville (30.008, -97.152). Updated through the day.
Growing snapshot for Smithville
Last spring frost
Mar 12
First fall frost
Nov 19
Growing season
251 days
Hardiness zone
9a
More local growing data for Smithville: nearby ZIP 78957 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Smithville, Tx (1.1 mi from Smithville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.