Hallettsville, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hallettsville, a city in Lavaca County, Texas.
Tonight
71°F
Mostly Clear
Mostly clear, with a low around 71. East wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Hallettsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Mostly Clear | 0 to 5 mph E | 2% |
| Saturday | 98°F | Sunny | 0 to 10 mph E | 2% |
| Saturday Night | 72°F | Mostly Clear | 0 to 10 mph SSE | 0% |
| Sunday | 98°F | Sunny | 0 to 10 mph SSE | 4% |
| Sunday Night | 74°F | Partly Cloudy | 0 to 10 mph SSE | 4% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph ESE | 11% |
| Monday Night | 72°F | Mostly Clear | 0 to 5 mph SE | 11% |
| Tuesday | 99°F | Sunny | 0 to 5 mph ENE | 13% |
| Tuesday Night | 73°F | Mostly Clear | 0 to 10 mph E | 13% |
| Wednesday | 99°F | Sunny | 0 to 10 mph NE | 6% |
| Wednesday Night | 73°F | Mostly Clear | 0 to 10 mph ENE | 6% |
| Thursday | 98°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Thursday Night | 72°F | Mostly Clear | 0 to 10 mph ENE | 4% |
| Friday | 97°F | Sunny | 5 to 10 mph NE | 5% |
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 Sep 19, 2026.