National Weather Service Forecast for: Port Allen LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 1:51 pm CDT Jul 4, 2025
 
Independence
Day
Independence Day: A 30 percent chance of showers and thunderstorms, mainly before 5pm.  Mostly sunny, with a high near 93. North wind around 5 mph.
Chance
T-storms

Tonight

Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 75. Northwest wind around 5 mph becoming calm.
Slight Chance
T-storms then
Mostly Clear
Saturday

Saturday: A 20 percent chance of showers and thunderstorms after 3pm.  Sunny and hot, with a high near 96. Calm wind.
Sunny then
Slight Chance
T-storms
Saturday
Night
Saturday Night: Mostly clear, with a low around 76. Calm wind.
Mostly Clear

Sunday

Sunday: Showers and thunderstorms likely after 1pm.  Sunny and hot, with a high near 95. Calm wind becoming northwest around 5 mph.  Chance of precipitation is 60%.
Sunny then
T-storms
Likely
Sunday
Night
Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am.  Partly cloudy, with a low around 74. South wind around 5 mph becoming calm.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers
Monday

Monday: Showers and thunderstorms likely after 1pm.  Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph.  Chance of precipitation is 60%.
Sunny then
T-storms
Likely
Monday
Night
Monday Night: Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm.
Mostly Clear

Tuesday

Tuesday: A chance of showers and thunderstorms after 1pm.  Sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Sunny then
Chance
T-storms
Hi 93 °F Lo 75 °F Hi 96 °F Lo 76 °F Hi 95 °F Lo 74 °F Hi 93 °F Lo 76 °F Hi 93 °F

 

Independence Day
 
A 30 percent chance of showers and thunderstorms, mainly before 5pm. Mostly sunny, with a high near 93. North wind around 5 mph.
Tonight
 
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. Northwest wind around 5 mph becoming calm.
Saturday
 
A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 96. Calm wind.
Saturday Night
 
Mostly clear, with a low around 76. Calm wind.
Sunday
 
Showers and thunderstorms likely after 1pm. Sunny and hot, with a high near 95. Calm wind becoming northwest around 5 mph. Chance of precipitation is 60%.
Sunday Night
 
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm. Chance of precipitation is 20%.
Monday
 
Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.
Monday Night
 
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm.
Tuesday
 
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
 
A chance of showers and thunderstorms. Sunny and hot, with a high near 95. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
 
A slight chance of showers and thunderstorms. Mostly clear, with a low around 77. Southwest wind around 5 mph.
Thursday
 
A chance of showers and thunderstorms. Sunny and hot, with a high near 95. West wind around 5 mph.
Thursday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southwest wind around 5 mph.
Friday
 
Showers and thunderstorms likely. Mostly sunny, with a high near 94. Southwest wind around 5 mph.

 

Forecast from NOAA-NWS for Port Allen LA.