Slidell Weather Forecast
- 77
- 100
Hot
- 77
- 100
Hot
- 78
- 99
Hot
- 79
- 99
Hot
- 79
- 101
Hot
- 74
- 98
Hot
- 74
- 96
Sunny
Today 27 Jul Wise
Sunny, hot with Highs around 102. South Winds 5 to 10 Mph. Heat index Values up to 106.
Tonight 27 Jul Wise
Mostly clear. Lows in the upper 70s. South Winds 5 to 10 Mph.
Slidell Temperature Statistics
July Temperature
Decatur, Decatur Municipal Airport (13 miles)
Lowest 14 July, 2026
70.9 °FAverage July
85.6 °FHighest 22 July, 2026
105.8 °F
Climate (2021–2026)
Decatur, Decatur Municipal Airport (13 miles)
Average Low 2021–2026
57.2 °FAverage 2021–2026
67.2 °FAverage High 2021–2026
77.8 °F