National Weather Service Forecast for: Slidell LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 3:14 pm CDT Apr 30, 2026
 
This
Afternoon
This Afternoon: Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 73. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Tonight

Tonight: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 9pm, then a chance of showers after 9pm. Mostly cloudy, with a low around 62. Northeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Showers
Likely

 Friday

Friday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms between noon and 2pm, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 71. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers
Likely

 Friday
Night
Friday Night: Showers and possibly a thunderstorm. Low around 53. Northeast wind around 10 mph. Chance of precipitation is 100%.
Showers

 Saturday

Saturday: Showers likely, mainly before 1pm. Partly sunny, with a high near 71. North wind around 15 mph. Chance of precipitation is 60%.
Showers
Likely then
Chance
Showers
 Saturday
Night
Saturday Night: Clear, with a low around 49. North wind 5 to 10 mph.
Clear

 Sunday

Sunday: Sunny, with a high near 75. North wind around 5 mph.
Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 53. Calm wind.
Mostly Clear

 Monday

Monday: Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.
Mostly Sunny
Hi 73 °F Lo 62 °F Hi 71 °F Lo 53 °F Hi 71 °F Lo 49 °F Hi 75 °F Lo 53 °F Hi 79 °F

 

This Afternoon
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 73. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 9pm, then a chance of showers after 9pm. Mostly cloudy, with a low around 62. Northeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday
 
 Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms between noon and 2pm, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 71. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
 Showers and possibly a thunderstorm. Low around 53. Northeast wind around 10 mph. Chance of precipitation is 100%.
Saturday
 
 Showers likely, mainly before 1pm. Partly sunny, with a high near 71. North wind around 15 mph. Chance of precipitation is 60%.
Saturday Night
 
 Clear, with a low around 49. North wind 5 to 10 mph.
Sunday
 
 Sunny, with a high near 75. North wind around 5 mph.
Sunday Night
 
 Mostly clear, with a low around 53. Calm wind.
Monday
 
 Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
 
 Partly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm after midnight.
Tuesday
 
 Mostly sunny, with a high near 83. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
 
 Partly cloudy, with a low around 67. South wind 5 to 10 mph.
Wednesday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 87. Southwest wind 5 to 15 mph.
Wednesday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South wind 5 to 10 mph becoming west after midnight.
Thursday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 84. West wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

 

Forecast from NOAA-NWS for Slidell LA.