Hallettsville, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hallettsville, a city in Lavaca County, Texas.
Tonight
52°F
Partly Cloudy
Partly cloudy, with a low around 52. North wind 0 to 5 mph.
7-day forecast for Hallettsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Wednesday | 76°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 51°F | Mostly Clear | 0 mph | 0% |
| Thursday | 81°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 5 mph ESE | 22% |
| Thursday Night | 58°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 15 mph N | 22% |
| Friday | 75°F | Sunny | 5 to 15 mph N | 2% |
| Friday Night | 53°F | Mostly Clear | 5 to 10 mph N | 2% |
| Saturday | 72°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph NNE | 16% |
| Saturday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 15% |
| Sunday | 71°F | Mostly Sunny | 5 to 10 mph N | 9% |
| Sunday Night | 47°F | Mostly Clear | 0 to 5 mph N | 7% |
| Monday | 73°F | Sunny | 0 to 5 mph NNE | 3% |
| Monday Night | 48°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 75°F | Mostly Sunny | 0 to 5 mph ESE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Hallettsville (29.443, -96.944). Updated through the day.
Growing snapshot for Hallettsville
Last spring frost
Feb 17
First fall frost
Dec 4
Growing season
297 days
Hardiness zone
9a
More local growing data for Hallettsville: nearby ZIP 77964 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hallettsville 2 N, Tx (9 mi from Hallettsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.