National Weather Service Forecast for: Laplace LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 6:45 pm CDT Aug 25, 2026
 
Tonight

Tonight: Mostly clear, with a low around 76. Calm wind.
Mostly Clear

 Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Sunny and hot, with a high near 96. Heat index values as high as 110. Calm wind becoming northwest around 5 mph.
Sunny then
Chance
T-storms
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers after 4am. Mostly cloudy, then gradually becoming clear, with a low around 77. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

 Thursday

Thursday: Showers and thunderstorms, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 92. Heat index values as high as 106. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 90%.
Chance
T-storms then
T-storms
 Thursday
Night
Thursday Night: Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 76. Calm wind. Chance of precipitation is 70%.
T-storms
Likely then
Showers
Likely
 Friday

Friday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 91. Calm wind becoming north around 5 mph. Chance of precipitation is 70%.
T-storms
Likely

 Friday
Night
Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 76. Calm wind. Chance of precipitation is 30%.
Chance
Showers

 Saturday

Saturday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming north around 5 mph.
Chance
T-storms

 Saturday
Night
Saturday Night: Mostly clear, with a low around 76. Calm wind.
Mostly Clear
Lo 76 °F Hi 96 °F Lo 77 °F Hi 92 °F Lo 76 °F Hi 91 °F Lo 76 °F Hi 92 °F Lo 76 °F

 

Tonight
 
 Mostly clear, with a low around 76. Calm wind.
Wednesday
 
 A 30 percent chance of showers and thunderstorms, mainly after 3pm. Sunny and hot, with a high near 96. Heat index values as high as 110. Calm wind becoming northwest around 5 mph.
Wednesday Night
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers after 4am. Mostly cloudy, then gradually becoming clear, with a low around 77. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
 
 Showers and thunderstorms, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 92. Heat index values as high as 106. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 90%.
Thursday Night
 
 Showers and thunderstorms likely before 7pm, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 76. Calm wind. Chance of precipitation is 70%.
Friday
 
 Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 91. Calm wind becoming north around 5 mph. Chance of precipitation is 70%.
Friday Night
 
 A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 76. Calm wind. Chance of precipitation is 30%.
Saturday
 
 A 30 percent chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming north around 5 mph.
Saturday Night
 
 Mostly clear, with a low around 76. Calm wind.
Sunday
 
 A chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
 
 Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm.
Monday
 
 Showers and thunderstorms likely. Sunny, with a high near 91. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
 
 Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm.
Tuesday
 
 A chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind becoming east around 5 mph.

 

Forecast from NOAA-NWS for Laplace LA.