National Weather Service Forecast for: Napoleonville LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 1:57 pm CDT May 25, 2026
 
Memorial
Day
Memorial Day: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. East wind around 5 mph.
Chance
T-storms

 Tonight

Tonight: A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 Tuesday

Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms

 Tuesday
Night
Tuesday Night: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.
Slight Chance
T-storms then
Partly Cloudy
 Wednesday

Wednesday: Showers and possibly a thunderstorm. High near 83. South wind around 5 mph. Chance of precipitation is 90%.
Showers
Likely then
T-storms
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm. Chance of precipitation is 70%.
Chance
T-storms then
Showers
Likely
 Thursday

Thursday: Showers and possibly a thunderstorm. High near 81. Calm wind becoming south around 5 mph. Chance of precipitation is 90%.
Showers then
T-storms

 Thursday
Night
Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind.
Chance
T-storms

 Friday

Friday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 82. Calm wind becoming southwest around 5 mph.
Showers
Likely then
T-storms
Likely
Hi 79 °F Lo 70 °F Hi 83 °F Lo 72 °F Hi 83 °F Lo 72 °F Hi 81 °F Lo 70 °F Hi 82 °F

Flood Watch
 

Memorial Day
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. East wind around 5 mph.
Tonight
 
 A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Tuesday
 
 A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.
Wednesday
 
 Showers and possibly a thunderstorm. High near 83. South wind around 5 mph. Chance of precipitation is 90%.
Wednesday Night
 
 A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm. Chance of precipitation is 70%.
Thursday
 
 Showers and possibly a thunderstorm. High near 81. Calm wind becoming south around 5 mph. Chance of precipitation is 90%.
Thursday Night
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind.
Friday
 
 Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 82. Calm wind becoming southwest around 5 mph.
Friday Night
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 71. Calm wind.
Saturday
 
 Showers and thunderstorms likely. Mostly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. Calm wind.
Sunday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for Napoleonville LA.