Lavaca, AR Weather & Growing Conditions
Tonight
72°F
Mostly Clear
Mostly clear, with a low around 72. Southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Sunday | 99°F | Mostly Sunny | 0 to 5 mph S | 2% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 34% |
| Monday | 93°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 36% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Mostly Clear | 5 mph N | 36% |
| Tuesday | 90°F | Mostly Sunny | 5 to 10 mph N | 8% |
| Tuesday Night | 62°F | Mostly Clear | 5 to 10 mph NE | 6% |
| Wednesday | 89°F | Sunny | 0 to 5 mph NE | 2% |
| Wednesday Night | 63°F | Mostly Clear | 0 to 5 mph E | 2% |
| Thursday | 89°F | Mostly Sunny | 0 to 5 mph E | 4% |
| Thursday Night | 65°F | Partly Cloudy | 5 mph E | 4% |
| Friday | 90°F | Partly Sunny | 0 to 5 mph E | 8% |
| Friday Night | 66°F | Mostly Cloudy | 5 mph E | 8% |
| Saturday | 90°F | Partly Sunny | 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lavaca, AR
Last spring frost
Mar 25
First fall frost
Nov 6
Growing season
224 days
Hardiness zone
8a
Explore more for Lavaca, AR: full frost dates · planting calendar · Arkansas frost dates
Climate data from the nearest NOAA station, Ft Smith Rgnl Ap, Ar (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.