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City of Slidell, LouisianaSlidell, LA 7-Day Night Weather Forecast
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Slidell, LA Weather Forecast
Slidell, LA Weather Forecast Date: 535 PM CDT Fri Sep 18 2026
The area/counties/county of: Southeast St. Tammany, including the city of Slidell.or toggle through each period.
Tonight... Clear. Lows in the lower 70s. Southeast winds around 5 mph this evening, becoming light and variable.
Saturday... Sunny. Highs in the mid 90s. North winds around 5 mph, becoming southeast in the afternoon.
Saturday Night... Clear. Lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable.
Sunday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Northwest winds around 5 mph, becoming southwest in the afternoon. Chance of rain 20%. Heat index values up to 107.
Sunday Night... Mostly clear. Lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable.
Monday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 40%. Heat index values up to 105.
Monday Night... Partly cloudy in the evening, then clearing. Lows in the mid 70s.
Tuesday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20%. Heat index values up to 105.
Tuesday Night... Mostly clear. Lows in the mid 70s.
Wednesday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20%.
Wednesday Night... Mostly clear. Lows in the lower 70s. Highs around 90.
Thursday... Mostly clear. Lows in the lower 70s. Highs around 90.
POP = Probability of Precipitation
Slidell Radar Loop
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