Harrisonburg, LA Weather & Growing Conditions
This Afternoon
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 103. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 100°F | Sunny | 5 mph SE | 0% |
| Tonight | 72°F | Clear | 0 to 5 mph SSW | 0% |
| Sunday | 100°F | Patchy Fog then Sunny | 0 to 5 mph WSW | 1% |
| Sunday Night | 74°F | Mostly Clear | 0 to 5 mph SSW | 1% |
| Monday | 100°F | Mostly Sunny | 0 to 5 mph WNW | 7% |
| Monday Night | 72°F | Partly Cloudy | 0 mph | 11% |
| Tuesday | 100°F | Sunny | 0 to 5 mph NNW | 10% |
| Tuesday Night | 72°F | Mostly Clear | 0 to 5 mph NNE | 10% |
| Wednesday | 97°F | Sunny | 5 to 15 mph NNE | 1% |
| Wednesday Night | 69°F | Mostly Clear | 5 to 10 mph NNE | 1% |
| Thursday | 95°F | Sunny | 5 to 15 mph NNE | 1% |
| Thursday Night | 67°F | Mostly Clear | 0 to 10 mph NE | 1% |
| Friday | 95°F | Mostly Sunny | 5 to 10 mph NNE | 0% |
| Friday Night | 67°F | Partly Cloudy | 0 to 5 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harrisonburg, LA
Last spring frost
Mar 6
First fall frost
Nov 22
Growing season
261 days
Hardiness zone
9a
Explore more for Harrisonburg, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Jonesville Locks, La (19.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.