Grand Isle Weather Forecast

    • 77
    • 91

    Chance Thunderstorms

    • 77
    • 92

    Slight Chance Thunderstorms

    • 77
    • 93

    Chance Thunderstorms

    • 77
    • 91

    Thunderstorms Likely

    • 78
    • 88

    Chance Thunderstorms

    • 78
    • 88

    Chance Thunderstorms

Today 27 Jun Mainland Southern Brevard

Partly sunny with a chance of Showers and Thunderstorms. Highs around 90. Southeast Winds 5 to 10 Mph increasing to 10 to 15 Mph late in the afternoon and towards Sunset. Chance of rain 40 percent. Heat index Values up to 103.

Tonight 27 Jun Mainland Southern Brevard

Mostly clear. A slight chance of Showers and Thunderstorms in the late evening and early morning. Lows in the upper 70s. South Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Isle Temperature Statistics

June Temperature

Cocoa - Patrick Air Force Base (6.2 miles)

  • Lowest 24 June, 2026

    73.8 °F

  • Average June

    82.1 °F

  • Highest 19 June, 2026

    95.7 °F

Climate (2021–2026)

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

    81.3 °F
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