Expires:202512280600;;338844 FPUS54 KLIX 272236 ZFPLIX Zone Forecast Product National Weather Service New Orleans LA 435 PM CST Sat Dec 27 2025 LAZ076-080-280600- Southeast St. Tammany-Southwestern St. Tammany- Including the cities of Slidell, Mandeville, and Madisonville 435 PM CST Sat Dec 27 2025 ...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM CST SUNDAY... .TONIGHT...Mostly cloudy. Areas of fog after midnight. Lows in the lower 60s. South winds around 5 mph. .SUNDAY...Patchy fog in the morning. Mostly sunny. Highs in the mid 70s. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly cloudy. Patchy fog in the evening. A slight chance of showers in the evening, then showers likely after midnight. Cooler with lows in the upper 40s. South winds 5 to 10 mph, becoming southwest 10 to 15 mph with gusts up to 25 mph after midnight. Chance of rain 70 percent. .MONDAY...Mostly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. Much cooler. Less humid with highs in the lower 60s. Temperature falling into the lower 50s in the afternoon. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Much colder with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY...Mostly sunny. Cooler with highs around 50. .TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Widespread frost through the day. Lows in the upper 20s. Highs in the lower 50s. .WEDNESDAY NIGHT AND NEW YEARS DAY...Mostly clear. Areas of frost through the day. Lows in the mid 30s. Highs in the upper 50s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows in the lower 40s. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. .SATURDAY...Mostly sunny with a 20 percent chance of showers. Highs in the mid 60s. $$