Slidell, LA Weather & Growing Conditions
Tonight
67°F
Mostly Cloudy then Patchy Fog
Patchy fog after midnight. Mostly cloudy, with a low around 67. Southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Mostly Cloudy then Patchy Fog | 0 to 5 mph SE | 7% |
| Wednesday | 81°F | Slight Chance Rain Showers | 0 to 5 mph W | 24% |
| Wednesday Night | 60°F | Mostly Clear | 0 mph | 2% |
| Thursday | 80°F | Mostly Sunny | 0 to 5 mph SW | 9% |
| Thursday Night | 58°F | Chance Rain Showers | 0 mph | 29% |
| Friday | 79°F | Chance Rain Showers then Partly Sunny | 0 to 5 mph NW | 34% |
| Friday Night | 53°F | Partly Cloudy | 0 to 5 mph N | 6% |
| Saturday | 77°F | Mostly Sunny | 5 mph N | 5% |
| Saturday Night | 47°F | Partly Cloudy | 5 mph N | 10% |
| Sunday | 71°F | Mostly Sunny | 5 mph N | 11% |
| Sunday Night | 44°F | Mostly Clear | 5 mph N | 4% |
| Monday | 72°F | Sunny | 5 mph N | 3% |
| Monday Night | 44°F | Mostly Clear | 0 to 5 mph N | 2% |
| Tuesday | 74°F | Sunny | 0 to 5 mph E | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Slidell, LA
Last spring frost
Feb 24
First fall frost
Dec 1
Growing season
281 days
Hardiness zone
9a
Explore more for Slidell, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Slidell, La (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.