Grand Isle State Park Weather Forecast

    • 71
    • 77

    Chance Rain Showers

    • 72
    • 77

    Slight Chance Rain Showers

    • 70
    • 77

    Chance Thunderstorms

    • 67
    • 76

    Slight Chance Thunderstorms

    • 66
    • 74

    Mostly Sunny

    • 65
    • 74

    Mostly Sunny

Today 1 Nov Coastal Jefferson

Mostly sunny. A slight chance of Showers this Morning, then a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs around 80. East Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 1 Nov Coastal Jefferson

Mostly cloudy. Lows in the upper 60s. East Winds 5 to 10 Mph.

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Grand Isle State Park Temperature Statistics

November Temperature

Port Fourchon (17.4 miles)

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  • Average November

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Climate (–)

Port Fourchon (17.4 miles)

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  • Average Low –

    71.6 °F

  • Average –

    72.5 °F

  • Average High –

    75.2 °F
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