Medicant Island Weather Forecast
- 78
- 89
Becoming Sunny
- 80
- 91
Mostly Sunny
- 79
- 89
Rain Showers
- 77
- 88
Mostly Sunny
- 78
- 88
Chance Rain Showers
- 76
- 87
Chance Thunderstorms
Today 14 Sep Lower Lafourche
Sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs around 90. Northwest Winds around 5 Mph, becoming southeast this afternoon. Chance of rain 20 percent.
Tonight 14 Sep Lower Lafourche
Mostly clear. Humid with Lows in the mid 70s. Light and variable Winds.
Medicant Island Temperature Statistics
September Temperature
Galliano, South Lafourche Airport (17.4 miles)
Lowest 6 September, 2026
73.4 °FAverage September
81.4 °FHighest 8 September, 2026
91.9 °F
Climate (2021–2026)
Galliano, South Lafourche Airport (17.4 miles)
Average Low 2021–2026
64.5 °FAverage 2021–2026
72.7 °FAverage High 2021–2026
80.3 °F