Harrisonburg, LA Weather & Growing Conditions
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 103. East wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 0 to 5 mph E | 0% |
| Tonight | 73°F | Mostly Clear | 0 to 5 mph SSW | 2% |
| Sunday | 99°F | Patchy Fog then Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 75°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph WNW | 11% |
| Monday Night | 74°F | Partly Cloudy | 0 mph | 12% |
| Tuesday | 99°F | Sunny | 0 to 5 mph N | 9% |
| Tuesday Night | 72°F | Mostly Clear | 0 to 5 mph NNE | 9% |
| Wednesday | 96°F | Sunny | 5 to 15 mph NNE | 1% |
| Wednesday Night | 68°F | Mostly Clear | 5 to 10 mph NNE | 1% |
| Thursday | 93°F | Sunny | 5 to 15 mph NNE | 0% |
| Thursday Night | 67°F | Mostly Clear | 5 to 10 mph NNE | 0% |
| Friday | 93°F | Mostly Sunny | 5 to 10 mph NNE | 0% |
| Friday Night | 67°F | Partly Cloudy | 5 to 10 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harrisonburg, LA
Last spring frost
Mar 10
First fall frost
Nov 16
Growing season
250 days
Hardiness zone
8b
Explore more for Harrisonburg, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Winnsboro 5 Sse, La (17.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.