Harrisonburg, LA Weather & Growing Conditions
This Afternoon
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 102. East southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Sunny | 5 mph ESE | 0% |
| Tonight | 72°F | Mostly Clear | 0 to 5 mph SW | 2% |
| Sunday | 99°F | Patchy Fog then Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 73°F | Mostly Clear | 0 to 5 mph SSW | 0% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph NW | 10% |
| Monday Night | 73°F | Partly Cloudy | 0 mph | 13% |
| Tuesday | 98°F | Sunny | 0 to 5 mph N | 9% |
| Tuesday Night | 71°F | Mostly Clear | 0 to 5 mph NNE | 9% |
| Wednesday | 95°F | Sunny | 5 to 10 mph NNE | 1% |
| Wednesday Night | 68°F | Mostly Clear | 5 to 10 mph NNE | 1% |
| Thursday | 93°F | Sunny | 5 to 10 mph NNE | 0% |
| Thursday Night | 67°F | Mostly Clear | 5 to 10 mph NNE | 0% |
| Friday | 92°F | Mostly Sunny | 5 to 10 mph NNE | 0% |
| Friday Night | 66°F | Partly Cloudy | 0 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 19
First fall frost
Nov 12
Growing season
238 days
Hardiness zone
8b
Explore more for Harrisonburg, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Jena, La (13.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.