Harrisonburg, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harrisonburg, a village in Catahoula County, Louisiana.
Overnight
71°F
Mostly Clear
Mostly clear, with a low around 71. Wind around 0 mph.
7-day forecast for Harrisonburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 95°F | Sunny | 0 to 5 mph NNE | 8% |
| Tuesday Night | 73°F | Mostly Clear | 0 to 5 mph ENE | 1% |
| Wednesday | 95°F | Mostly Sunny | 0 to 5 mph SSW | 11% |
| Wednesday Night | 73°F | Mostly Clear | 0 to 5 mph S | 4% |
| Thursday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 20% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 to 5 mph S | 20% |
| Friday | 95°F | Patchy Fog then Sunny | 0 to 5 mph SSE | 11% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 15% |
| Saturday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 17% |
| Saturday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 17% |
| Sunday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSE | 23% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 23% |
| Monday | 94°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 35% |
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 Aug 4, 2026.