National Weather Service Forecast for: Slidell LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 1:58 pm CDT Jul 10, 2026
 
This
Afternoon
This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 105. South wind around 5 mph.
Chance
T-storms

 Tonight

Tonight: Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Mostly Clear

 Saturday

Saturday: A 40 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 94. Heat index values as high as 106. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Sunny then
Chance
T-storms
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Sunday

Sunday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Slight Chance
T-storms then
T-storms
Likely
 Sunday
Night
Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm.
Chance
T-storms

 Monday

Monday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. High near 89. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%.
T-storms

 Monday
Night
Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. West wind around 5 mph becoming calm in the evening.
Chance
T-storms

 Tuesday

Tuesday: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
T-storms
Likely
Hi 94 °F Lo 77 °F Hi 94 °F Lo 78 °F Hi 93 °F Lo 75 °F Hi 89 °F Lo 74 °F Hi 90 °F

 

This Afternoon
 
 A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 105. South wind around 5 mph.
Tonight
 
 Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Saturday
 
 A 40 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 94. Heat index values as high as 106. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Saturday Night
 
 Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening.
Sunday
 
 Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Sunday Night
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm.
Monday
 
 Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. High near 89. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%.
Monday Night
 
 A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. West wind around 5 mph becoming calm in the evening.
Tuesday
 
 Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
 
 A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm.
Wednesday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind.
Thursday
 
 A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
 
 Partly cloudy, with a low around 76. Calm wind.
Friday
 
 A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Calm wind becoming west around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for Slidell LA.