Harrisonburg, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harrisonburg, a village in Catahoula County, Louisiana.
Overnight
70°F
Clear
Clear, with a low around 70. Wind around 0 mph.
7-day forecast for Harrisonburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Clear | 0 mph | 0% |
| Saturday | 99°F | Sunny | 0 to 5 mph NNW | 1% |
| Saturday Night | 72°F | Mostly Clear | 0 to 5 mph SSW | 2% |
| Sunday | 99°F | Patchy Fog then Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 73°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph NW | 11% |
| Monday Night | 72°F | Partly Cloudy | 0 mph | 13% |
| Tuesday | 98°F | Sunny | 0 to 5 mph N | 10% |
| Tuesday Night | 71°F | Mostly Clear | 0 to 5 mph NNE | 10% |
| Wednesday | 96°F | Sunny | 5 to 10 mph NNE | 1% |
| Wednesday Night | 68°F | Mostly Clear | 5 to 10 mph NNE | 1% |
| Thursday | 94°F | Sunny | 5 to 10 mph NNE | 0% |
| Thursday Night | 67°F | Mostly Clear | 5 to 10 mph NNE | 0% |
| Friday | 93°F | Mostly Sunny | 5 to 10 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Harrisonburg (31.768, -91.823). Updated through the day.
Growing snapshot for Harrisonburg
Last spring frost
Mar 6
First fall frost
Nov 22
Growing season
261 days
Hardiness zone
9a
More local growing data for Harrisonburg: nearby ZIP 71340 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jonesville Locks, La (19.4 mi from Harrisonburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.