Perch Lake Weather Forecast
- 69
- 91
Mostly Sunny
- 70
- 92
Mostly Sunny
- 71
- 90
Mostly Sunny
- 74
- 90
Chance Rain Showers
- 73
- 90
Rain Showers Likely
- 72
- 88
Rain Showers Likely
Today 27 Sep Northern St. Tammany
Sunny. Highs in the lower 90s. Northwest Winds around 5 Mph.
Tonight 27 Sep Northern St. Tammany
Mostly clear. Lows in the upper 60s. Light and variable Winds.
Perch Lake Temperature Statistics
September Temperature
Slidell, Slidell Airport (10.6 miles)
Lowest 18 September, 2026
67.6 °FAverage September
82.1 °FHighest 15 September, 2026
94.6 °F
Climate (2021–2026)
Slidell, Slidell Airport (10.6 miles)
Average Low 2021–2026
60 °FAverage 2021–2026
70.3 °FAverage High 2021–2026
81 °F