Grand Isle (Outside) Weather Forecast

    • 46
    • 51

    Mostly Cloudy

    • 52
    • 56

    Chance Rain Showers

    • 53
    • 58

    Rain Showers

    • 56
    • 62

    Mostly Sunny

    • 59
    • 66

    Mostly Sunny

    • 59
    • 67

    Partly Sunny

Today 21 Feb Coastal Jefferson

Mostly sunny. Highs in the upper 40s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 21 Feb Coastal Jefferson

Mostly cloudy. Near steady temperature in the mid 40s. Northeast Winds 5 to 10 Mph.

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Grand Isle (Outside) Temperature Statistics

February Temperature

Port Fourchon (18 miles)

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  • Average February

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Climate (2020–Present)

Port Fourchon (18 miles)

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  • Average Low 2020–2020

    74 °F

  • Average 2020–2020

    77.9 °F

  • Average High 2020–2020

    81.6 °F
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