National Weather Service Forecast for: Chalmette LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 6:16 pm CDT Jul 25, 2025
 
Tonight

Tonight: A chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 79. Southeast wind 5 to 10 mph.  Chance of precipitation is 30%.
Chance
T-storms
Saturday

Saturday: Showers and thunderstorms likely, mainly between noon and 3pm. Some of the storms could produce heavy rainfall.  Partly sunny, with a high near 91. Southeast wind 5 to 10 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Heavy Rain

Saturday
Night
Saturday Night: A 30 percent chance of showers and thunderstorms before 7pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 79. South wind around 5 mph becoming calm  in the evening.
Chance
T-storms then
Mostly Clear
Sunday

Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming southeast around 5 mph in the morning.
Chance
T-storms
Sunday
Night
Sunday Night: Clear, with a low around 78. South wind around 5 mph becoming calm  in the evening.
Clear

Monday

Monday: Sunny and hot, with a high near 95. Northwest wind around 5 mph.
Hot

Monday
Night
Monday Night: Mostly clear, with a low around 82. West wind around 5 mph.
Mostly Clear

Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny and hot, with a high near 96. North wind 5 to 10 mph.
Sunny then
Slight Chance
T-storms
Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 81. Northwest wind around 5 mph.
Chance
T-storms
Lo 79 °F Hi 91 °F Lo 79 °F Hi 93 °F Lo 78 °F Hi 95 °F Lo 82 °F Hi 96 °F Lo 81 °F

 

Tonight
 
A chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 79. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
 
Showers and thunderstorms likely, mainly between noon and 3pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 91. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
 
A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 79. South wind around 5 mph becoming calm in the evening.
Sunday
 
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming southeast around 5 mph in the morning.
Sunday Night
 
Clear, with a low around 78. South wind around 5 mph becoming calm in the evening.
Monday
 
Sunny and hot, with a high near 95. Northwest wind around 5 mph.
Monday Night
 
Mostly clear, with a low around 82. West wind around 5 mph.
Tuesday
 
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. North wind 5 to 10 mph.
Tuesday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Northwest wind around 5 mph.
Wednesday
 
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 93. Northwest wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 78. Southwest wind around 5 mph.
Thursday
 
Showers and thunderstorms likely. Partly sunny, with a high near 91. Southwest wind around 5 mph.
Thursday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 79. South wind around 5 mph.
Friday
 
Showers and thunderstorms. Partly sunny, with a high near 91. West wind around 5 mph.

 

Forecast from NOAA-NWS for Chalmette LA.