Lavaca, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lavaca, a city in Sebastian County, Arkansas.
Today
68°F
Sunny
Sunny, with a high near 68. West wind 5 to 10 mph.
7-day forecast for Lavaca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Sunny | 5 to 10 mph W | 0% |
| Tonight | 46°F | Mostly Clear | 0 to 5 mph W | 0% |
| Thursday | 72°F | Sunny | 0 to 5 mph NW | 1% |
| Thursday Night | 49°F | Partly Cloudy | 5 mph NW | 6% |
| Friday | 65°F | Sunny | 5 to 10 mph NW | 0% |
| Friday Night | 44°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 61°F | Mostly Sunny | 0 mph | 0% |
| Saturday Night | 40°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 64°F | Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 39°F | Mostly Clear | 0 mph | 0% |
| Monday | 67°F | Sunny | 0 mph | 1% |
| Monday Night | 41°F | Clear | 0 mph | 2% |
| Tuesday | 69°F | Sunny | 0 mph | 1% |
| Tuesday Night | 45°F | Mostly Clear | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov) for Lavaca (35.330, -94.183). Updated through the day.
Growing snapshot for Lavaca
Last spring frost
Mar 25
First fall frost
Nov 6
Growing season
224 days
Hardiness zone
8a
More local growing data for Lavaca: nearby ZIP 72941 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ft Smith Rgnl Ap, Ar (11.2 mi from Lavaca). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.