Bayou Rigaud - Grand Isle Weather Forecast

    • 66
    • 72

    Rain Showers

    • 63
    • 71

    Rain Showers

    • 61
    • 68

    Cloudy

    • 57
    • 66

    Mostly Cloudy

    • 56
    • 65

    Mostly Cloudy

    • 56
    • 64

    Mostly Sunny

    • 60
    • 64

    Partly Sunny

Today 1 Dec Coastal Jefferson

Mostly cloudy with a chance of Thunderstorms. A chance of Showers. Patchy dense fog this afternoon. Highs in the mid 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to 5 to 10 Mph with Gusts up to 20 Mph this afternoon. Chance of rain 50 percent.

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Bayou Rigaud - Grand Isle Temperature Statistics

December Temperature

Port Fourchon (16.8 miles)

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Climate (2018–Present)

Port Fourchon (16.8 miles)

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  • Average Low 2018–2022

    68.9 °F
  • Average 2018–2022

    73.2 °F
  • Average High 2018–2022

    77.2 °F
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