National Weather Service Forecast for: Port Allen LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 2:01 am CDT Jun 22, 2026
 
Today

Today: Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 5 to 10 mph.
Mostly Sunny
 Tonight

Tonight: Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph becoming light after midnight.
Partly Cloudy
 Tuesday

Tuesday: Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Calm wind becoming west around 5 mph in the afternoon.
Hot
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 76. West wind around 5 mph.
Partly Cloudy
 Wednesday

Wednesday: Sunny, with a high near 94. Calm wind becoming west around 5 mph in the afternoon.
Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 75. Southwest wind around 5 mph.
Partly Cloudy
 Thursday

Thursday: Mostly sunny and hot, with a high near 95. Calm wind becoming southwest around 5 mph in the afternoon.
Hot
 Thursday
Night
Thursday Night: Mostly clear, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.
Mostly Clear
 Friday

Friday: Sunny and hot, with a high near 95. Light south wind becoming southwest 5 to 10 mph in the morning.
Hot
Hi 93 °F Lo 77 °F Hi 95 °F Lo 76 °F Hi 94 °F Lo 75 °F Hi 95 °F Lo 75 °F Hi 95 °F

 

Today
 
 Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 5 to 10 mph.
Tonight
 
 Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph becoming light after midnight.
Tuesday
 
 Mostly sunny and hot, with a high near 95. Heat index values as high as 107. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
 
 Partly cloudy, with a low around 76. West wind around 5 mph.
Wednesday
 
 Sunny, with a high near 94. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
 
 Partly cloudy, with a low around 75. Southwest wind around 5 mph.
Thursday
 
 Mostly sunny and hot, with a high near 95. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.
Friday
 
 Sunny and hot, with a high near 95. Light south wind becoming southwest 5 to 10 mph in the morning.
Friday Night
 
 Mostly clear, with a low around 76. South wind around 5 mph.
Saturday
 
 Sunny and hot, with a high near 95. Light south wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
 
 Mostly clear, with a low around 77. South wind 5 to 10 mph.
Sunday
 
 Sunny and hot, with a high near 96. South wind 5 to 10 mph.

 

Forecast from NOAA-NWS for Port Allen LA.