Galliano Weather Forecast

    • 77
    • 91

    Chance Thunderstorms

    • 76
    • 91

    Chance Thunderstorms

    • 77
    • 91

    Thunderstorms Likely

    • 77
    • 90

    Chance Thunderstorms

    • 76
    • 89

    Chance Thunderstorms

    • 76
    • 88

    Thunderstorms Likely

Today 17 Aug Lower Lafourche

Sunny. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 90s. North Winds around 5 Mph. Chance of rain 50 percent.

Tonight 17 Aug Lower Lafourche

Mostly clear. Near steady temperature in the upper 70s. Northwest Winds around 5 Mph.

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Galliano Temperature Statistics

August Temperature

Galliano, South Lafourche Airport (1.9 miles)

  • Lowest 8 August, 2025

    73.4 °F

  • Average August

    81.2 °F

  • Highest 14 August, 2025

    93 °F

Climate (2020–Present)

Galliano, South Lafourche Airport (1.9 miles)

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  • Average Low 2020–2025

    64.5 °F

  • Average 2020–2025

    72.3 °F

  • Average High 2020–2025

    79.7 °F
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