Smithville, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithville, a city in Bastrop County, Texas.
Tonight
50°F
Mostly Clear
Mostly clear, with a low around 50. North northwest wind around 0 mph.
7-day forecast for Smithville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Mostly Clear | 0 mph | 0% |
| Wednesday | 75°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 48°F | Mostly Clear | 0 mph | 0% |
| Thursday | 80°F | Mostly Sunny | 0 to 5 mph SSE | 10% |
| Thursday Night | 56°F | Partly Cloudy | 0 to 10 mph N | 13% |
| Friday | 74°F | Sunny | 5 to 10 mph N | 1% |
| Friday Night | 50°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 70°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph N | 16% |
| Saturday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph N | 15% |
| Sunday | 70°F | Mostly Sunny | 5 to 10 mph N | 8% |
| Sunday Night | 45°F | Mostly Clear | 0 mph | 6% |
| Monday | 72°F | Sunny | 0 to 5 mph ENE | 3% |
| Monday Night | 46°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 74°F | Mostly Sunny | 0 to 5 mph SSE | 1% |
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.