Port Allen, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Allen, a city in East Baton Rouge County, Louisiana.
Overnight
74°F
Clear
Clear. Low around 74, with temperatures rising to around 76 overnight. North wind around 0 mph.
7-day forecast for Port Allen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 74°F | Clear | 0 mph | 0% |
| Tuesday | 95°F | Sunny | 0 to 5 mph NW | 8% |
| Tuesday Night | 76°F | Mostly Clear | 0 to 5 mph SW | 9% |
| Wednesday | 96°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 21% |
| Wednesday Night | 76°F | Mostly Clear | 0 to 5 mph S | 9% |
| Thursday | 95°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 30% |
| Thursday Night | 76°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph SE | 30% |
| Friday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 15% |
| Friday Night | 75°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 15% |
| Saturday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph E | 23% |
| Saturday Night | 76°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 23% |
| Sunday | 94°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph SE | 48% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 48% |
| Monday | 93°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 62% |
Forecast source: National Weather Service (api.weather.gov) for Port Allen (30.444, -91.207). Updated through the day.
Growing snapshot for Port Allen
Last spring frost
Feb 28
First fall frost
Nov 26
Growing season
272 days
Hardiness zone
9a
More local growing data for Port Allen: nearby ZIP 70825 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Baker
Baton Rouge
Brownfields
Central
Denham Springs
Gardere
Inniswold
Merrydale
Monticello
Oak Hills Place
Old Jefferson
Shenandoah
Village St. George
Westminster
Zachary
Climate data from the nearest NOAA station, Lsu Ben-Hur Farm, La (6.2 mi from Port Allen). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.