National Weather Service Forecast for: Slidell LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 11:31 pm CST Feb 1, 2026
 
Overnight

Overnight: Widespread frost. Otherwise, clear, with a low around 28. Calm wind.
Frost

 Monday

Monday: Widespread frost before 9am. Otherwise, sunny, with a high near 57. Calm wind becoming southwest around 5 mph.
Frost then
Sunny
 Monday
Night
Monday Night: Increasing clouds, with a low around 42. Calm wind becoming south around 5 mph.
Increasing
Clouds
 Tuesday

Tuesday: Mostly sunny, with a high near 69. Light south wind increasing to 5 to 10 mph in the morning.
Mostly Sunny

 Tuesday
Night
Tuesday Night: Showers, mainly after midnight. Low around 51. South wind around 5 mph becoming northwest after midnight. Chance of precipitation is 80%.
Chance
Showers then
Showers
 Wednesday

Wednesday: A 40 percent chance of showers before noon. Mostly sunny, with a high near 61. North wind 5 to 10 mph, with gusts as high as 20 mph.
Chance
Showers then
Mostly Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 34. North wind 5 to 10 mph, with gusts as high as 25 mph.
Partly Cloudy

 Thursday

Thursday: Areas of frost between 7am and 8am. Otherwise, sunny, with a high near 55. North wind 5 to 10 mph, with gusts as high as 20 mph.
Areas Frost
then Sunny
 Thursday
Night
Thursday Night: Patchy frost after 3am. Otherwise, mostly clear, with a low around 35. Northwest wind around 5 mph becoming calm.
Mostly Clear
then Patchy
Frost
Lo 28 °F Hi 57 °F Lo 42 °F Hi 69 °F Lo 51 °F Hi 61 °F Lo 34 °F Hi 55 °F Lo 35 °F

Cold Weather Advisory
 

Overnight
 
 Widespread frost. Otherwise, clear, with a low around 28. Calm wind.
Monday
 
 Widespread frost before 9am. Otherwise, sunny, with a high near 57. Calm wind becoming southwest around 5 mph.
Monday Night
 
 Increasing clouds, with a low around 42. Calm wind becoming south around 5 mph.
Tuesday
 
 Mostly sunny, with a high near 69. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
 
 Showers, mainly after midnight. Low around 51. South wind around 5 mph becoming northwest after midnight. Chance of precipitation is 80%.
Wednesday
 
 A 40 percent chance of showers before noon. Mostly sunny, with a high near 61. North wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
 
 Partly cloudy, with a low around 34. North wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday
 
 Areas of frost between 7am and 8am. Otherwise, sunny, with a high near 55. North wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
 
 Patchy frost after 3am. Otherwise, mostly clear, with a low around 35. Northwest wind around 5 mph becoming calm.
Friday
 
 Sunny, with a high near 66. Light west wind increasing to 5 to 10 mph in the morning.
Friday Night
 
 Mostly clear, with a low around 42. West wind around 5 mph becoming north after midnight.
Saturday
 
 Sunny, with a high near 66. North wind around 5 mph becoming south in the afternoon.
Saturday Night
 
 Mostly clear, with a low around 41. Calm wind.
Sunday
 
 Sunny, with a high near 68. Calm wind becoming south around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for Slidell LA.