Grand Isle Weather Forecast

    • 71
    • 80

    Chance Rain Showers

    • 68
    • 81

    Chance Rain Showers

    • 68
    • 81

    Mostly Sunny

    • 67
    • 80

    Mostly Sunny

    • 65
    • 79

    Mostly Sunny

    • 67
    • 80

    Mostly Sunny

Today 18 Oct Mainland Southern Brevard

Partly sunny with a chance of Showers. A slight chance of Thunderstorms late in the afternoon and towards Sunset. Windy. Highs around 80. Northeast Winds 20 to 25 Mph with Gusts up to 35 Mph. Chance of rain 40 percent.

Tonight 18 Oct Mainland Southern Brevard

Partly cloudy with a slight chance of Thunderstorms. A chance of Showers in the late evening and early Morning, then a slight chance of Showers after midnight. Breezy. Lows in the lower 70s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 30 percent.

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Grand Isle Temperature Statistics

October Temperature

Cocoa - Patrick Air Force Base (6.2 miles)

  • Lowest 1 October, 2026

    74.7 °F

  • Average October

    82.2 °F

  • Highest 11 October, 2026

    91.4 °F

Climate (2021–2026)

Cocoa - Patrick Air Force Base (6.2 miles)

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  • Average Low 2021–2026

    70 °F

  • Average 2021–2026

    75.2 °F

  • Average High 2021–2026

    81.3 °F
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