Grand Isle Weather Forecast

    • 76
    • 87

    Increasing Clouds

    • 76
    • 86

    Chance Thunderstorms

    • 77
    • 86

    Chance Thunderstorms

    • 77
    • 86

    Slight Chance Thunderstorms

    • 76
    • 85

    Slight Chance Thunderstorms

    • 77
    • 87

    Slight Chance Thunderstorms

Today 16 May Mainland Southern Brevard

Mostly sunny. Breezy. Highs in the mid 80s. Southeast Winds 15 to 20 Mph.

Tonight 16 May Mainland Southern Brevard

Considerable cloudiness. Lows in the upper 70s. Southeast Winds 10 to 15 Mph decreasing to 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Isle Temperature Statistics

May Temperature

Cocoa - Patrick Air Force Base (6.2 miles)

  • Lowest 7 May, 2026

    71.1 °F

  • Average May

    79.3 °F

  • Highest 10 May, 2026

    91.8 °F

Climate (2021–Present)

Cocoa - Patrick Air Force Base (6.2 miles)

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  • Average Low 2021–2026

    69.9 °F

  • Average 2021–2026

    75.1 °F

  • Average High 2021–2026

    81.2 °F
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