Hallettsville, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hallettsville, a city in Lavaca County, Texas.
This Afternoon
78°F
Sunny
Sunny, with a high near 78. North northeast wind 0 to 5 mph.
7-day forecast for Hallettsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Sunny | 0 to 5 mph NNE | 0% |
| Tonight | 52°F | Mostly Clear | 0 mph | 0% |
| Thursday | 82°F | Sunny | 0 to 5 mph ESE | 2% |
| Thursday Night | 58°F | Partly Cloudy | 0 to 15 mph N | 10% |
| Friday | 76°F | Sunny | 10 to 15 mph N | 2% |
| Friday Night | 55°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Saturday | 74°F | Partly Sunny | 10 mph NNE | 11% |
| Saturday Night | 52°F | Chance Rain Showers | 10 to 15 mph NNE | 38% |
| Sunday | 66°F | Chance Rain Showers | 5 to 15 mph NNE | 36% |
| Sunday Night | 49°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 20% |
| Monday | 67°F | Slight Chance Rain Showers | 0 to 5 mph N | 19% |
| Monday Night | 48°F | Partly Cloudy | 0 mph | 5% |
| Tuesday | 70°F | Mostly Sunny | 0 mph | 10% |
| Tuesday Night | 50°F | Partly Cloudy then Slight Chance Rain Showers | 0 mph | 15% |
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.