National Weather Service Forecast for: Port Allen LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 9:24 am CDT Oct 20, 2026
 
Today

Today: Sunny, with a high near 83. Northeast wind around 5 mph.
Sunny
 Tonight

Tonight: Mostly clear, with a low around 53. Northeast wind around 5 mph becoming calm.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 86. Northeast wind around 5 mph.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 53. Calm wind.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.
Sunny
 Thursday
Night
Thursday Night: Clear, with a low around 55. Calm wind.
Clear
 Friday

Friday: Sunny, with a high near 87. East wind around 5 mph.
Sunny
 Friday
Night
Friday Night: Clear, with a low around 55. East wind around 5 mph becoming calm.
Clear
 Saturday

Saturday: Sunny, with a high near 83. East wind 5 to 10 mph.
Sunny
Hi 83 °F Lo 53 °F Hi 86 °F Lo 53 °F Hi 86 °F Lo 55 °F Hi 87 °F Lo 55 °F Hi 83 °F

 

Today
 
 Sunny, with a high near 83. Northeast wind around 5 mph.
Tonight
 
 Mostly clear, with a low around 53. Northeast wind around 5 mph becoming calm.
Wednesday
 
 Sunny, with a high near 86. Northeast wind around 5 mph.
Wednesday Night
 
 Mostly clear, with a low around 53. Calm wind.
Thursday
 
 Sunny, with a high near 86. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
 
 Clear, with a low around 55. Calm wind.
Friday
 
 Sunny, with a high near 87. East wind around 5 mph.
Friday Night
 
 Clear, with a low around 55. East wind around 5 mph becoming calm.
Saturday
 
 Sunny, with a high near 83. East wind 5 to 10 mph.
Saturday Night
 
 Clear, with a low around 56. East wind around 5 mph.
Sunday
 
 Sunny, with a high near 82. East wind around 10 mph.
Sunday Night
 
 Partly cloudy, with a low around 55. Northeast wind around 5 mph.
Monday
 
 Mostly sunny, with a high near 83. East wind around 5 mph.

 

Forecast from NOAA-NWS for Port Allen LA.