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.

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  • Temperature Real-Time

Medicant Island Temperature Statistics

September Temperature

Galliano, South Lafourche Airport (17.4 miles)

  • Lowest 6 September, 2026

    73.4 °F
  • Average September

    81.4 °F
  • Highest 8 September, 2026

    91.9 °F

Climate (2021–2026)

Galliano, South Lafourche Airport (17.4 miles)

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  • Average Low 2021–2026

    64.5 °F
  • Average 2021–2026

    72.7 °F
  • Average High 2021–2026

    80.3 °F
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