Grand Isle Weather Forecast

    • 74
    • 89

    Rain Showers

    • 75
    • 91

    Thunderstorms Likely

    • 76
    • 91

    Chance Thunderstorms

    • 75
    • 91

    Chance Thunderstorms

    • 75
    • 89

    Chance Thunderstorms

    • 76
    • 91

    Chance Thunderstorms

    • 75
    • 91

    Thunderstorms Likely

Today 5 Jul Mainland Southern Brevard

Partly cloudy. A chance of Showers and Thunderstorms early in the Afternoon, then Showers and Thunderstorms likely late in the afternoon and towards Sunset. Highs in the upper 80s. Southwest Winds 5 to 10 Mph becoming southeast late in the afternoon and towards Sunset. Chance of rain 70 percent. Heat index Values up to 101.

Tonight 5 Jul Mainland Southern Brevard

Considerable cloudiness early in the evening then becoming partly cloudy. Showers and Thunderstorms likely early in the Evening, then a chance of Showers and Thunderstorms in the late evening and early morning. Lows in the mid 70s. East Winds 5 to 10 Mph becoming southwest in the late evening and overnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Isle Temperature Statistics

July Temperature

Cocoa - Patrick Air Force Base (6.2 miles)

  • Lowest 1 July, 2025

    75 °F
  • Average July

    79.4 °F
  • Highest 1 July, 2025

    87.4 °F

Climate (2020–Present)

Cocoa - Patrick Air Force Base (6.2 miles)

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  • Average Low 2020–2025

    70 °F
  • Average 2020–2025

    75.1 °F
  • Average High 2020–2025

    81.2 °F
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