What is today's weather forecast for Slidell, LA?

Today's forecast for Slidell shows a high of 77 degrees and a low of 64 degrees Fahrenheit. Widespread dense fog, mainly before 9am.

What is the 7-day weather forecast for Slidell, LA?

The 7-day forecast for Slidell shows highs from 75 to 80 degrees and lows from 59 to 64 degrees Fahrenheit. Expect precipitation on 5 days with chances of 20% or higher.

Will it rain in Slidell, LA this week?

Yes, rain is possible in Slidell this week. Precipitation chances: Thursday (50% chance), Friday (60% chance), Monday (50% chance), Tuesday (50% chance), Wednesday (50% chance).

How accurate is the Slidell weather forecast?

WeatherForYou provides highly accurate Slidell forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Slidell, LA Weather Forecast and Current Conditions

WEATHER ALERTS - Dense Fog Advisory

Current Conditions From Nearby Local Station

Switch to Metric Units

68°F
Feels Like 68°F

Humidity 99% Dew Point 67°F Wind NE 1 MPH Gusts 2 Barometer 30.1 in.764.5 mm

Solar Rad 202 w/m² UV Index 1

Report from a personal weather station 0.4 miles ENE of central Slidell
at 8:51 AM Thu, Nov 20, 2025

Point Forecast at a Glance

ThuNov 20

FriNov 21

60%

SatNov 22

SunNov 23

MonNov 24

TueNov 25

50%

WedNov 26

50%

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 75°F to 80°F. Unsettled weather expected with rain likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 8°F above the historical average for November. Normal highs for this period are around 70°F with lows around 50°F.

This Date in Weather History

1869 - A second great windstorm in three days struck Vermont and New York blowing railroad trains off their tracks.

Slidell, LA 7 Day Weather Forecast Details

Thursday Nov 20

Day: Widespread dense fog, mainly before 9am. Otherwise, cloudy through mid morning, then becoming mostly sunny, with a high near 77. Light east wind becoming southeast 5 to 10 mph in the morning.

Night: A 50 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 64. Southeast wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday Nov 21

Day: Showers likely before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before 11am. Otherwise, partly sunny, with a high near 79. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Night: Partly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening.

Saturday Nov 22

Day: Mostly sunny, with a high near 80. Calm wind becoming west around 5 mph.

Night: Partly cloudy, with a low around 62. Calm wind.

Sunday Nov 23

Day: Partly sunny, with a high near 79. Calm wind becoming southeast around 5 mph.

Night: Partly cloudy, with a low around 61. Calm wind becoming southeast around 5 mph.

Monday Nov 24

Day: Mostly sunny, with a high near 78. Southeast wind 5 to 10 mph.

Night: A chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 63. Southeast wind around 5 mph.

Tuesday Nov 25

Day: A chance of showers and thunderstorms. Partly sunny, with a high near 78. South wind 5 to 10 mph.

Night: A slight chance of showers. Partly cloudy, with a low around 59. South wind around 5 mph becoming calm.

Wednesday Nov 26

Day: A slight chance of showers. Mostly sunny, with a high near 75. North wind around 5 mph becoming southeast in the afternoon.

About Slidell, LA

Slidell is a city on the northeast shore of Lake Pontchartrain in St. Tammany Parish, Louisiana, United States. The population was 28,781 at the 2020 census, making it the sixteenth-most populous city in Louisiana. It is part of the New Orleans−Metairie−Kenner metropolitan statistical area.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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