Port Barre, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Barre, a town in St. Landry County, Louisiana.
This Afternoon
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 98. East wind 5 to 10 mph.
7-day forecast for Port Barre
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Sunny | 5 to 10 mph E | 0% |
| Tonight | 70°F | Clear | 0 to 5 mph SE | 0% |
| Saturday | 97°F | Sunny | 0 to 5 mph E | 1% |
| Saturday Night | 72°F | Clear | 0 to 5 mph S | 1% |
| Sunday | 97°F | Sunny | 0 to 5 mph E | 2% |
| Sunday Night | 74°F | Mostly Clear | 0 to 5 mph SW | 2% |
| Monday | 98°F | Sunny | 0 to 5 mph N | 12% |
| Monday Night | 74°F | Partly Cloudy | 0 mph | 12% |
| Tuesday | 99°F | Sunny | 0 to 5 mph N | 10% |
| Tuesday Night | 74°F | Mostly Clear | 0 to 5 mph E | 10% |
| Wednesday | 97°F | Sunny | 0 to 10 mph NE | 4% |
| Wednesday Night | 73°F | Mostly Clear | 0 to 10 mph NE | 4% |
| Thursday | 95°F | Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 71°F | Mostly Clear | 5 to 10 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Port Barre (30.556, -91.956). Updated through the day.
Growing snapshot for Port Barre
Last spring frost
Feb 28
First fall frost
Nov 23
Growing season
267 days
Hardiness zone
9a
More local growing data for Port Barre: nearby ZIP 70577 weather · frost dates · planting calendar · Louisiana frost dates
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Washington
Climate data from the nearest NOAA station, Grand Coteau, La (11.7 mi from Port Barre). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.