Grand Isle Weather Forecast

    • 77
    • 86

    Rain Showers Likely

    • 71
    • 84

    Chance Rain Showers

    • 73
    • 84

    Partly Sunny

    • 74
    • 86

    Mostly Cloudy

    • 74
    • 87

    Chance Rain Showers

    • 74
    • 88

    Chance Rain Showers

Today 20 Sep Southern Brevard County

Mostly cloudy with numerous Showers and isolated Thunderstorms. Windy. Highs in the mid 80s. Northeast Winds 20 to 25 Mph with Gusts to around 40 Mph. Chance of rain 70 percent.

Tonight 20 Sep Southern Brevard County

Considerable cloudiness. Scattered Showers and isolated Thunderstorms through late Evening, then scattered Showers after midnight. Windy. Lows in the upper 70s. Northeast Winds 20 to 25 Mph with Gusts to around 40 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Isle Temperature Statistics

September Temperature

Cocoa - Patrick Air Force Base (6.2 miles)

  • Lowest 8 September, 2020

    76.5 °F

  • Average September

    82.8 °F

  • Highest 17 September, 2020

    93.2 °F

Climate (2010–Present)

Cocoa - Patrick Air Force Base (6.2 miles)

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  • Average Low 2010–Present

    70.2 °F

  • Average 2010–Present

    75.3 °F

  • Average High 2010–Present

    81.6 °F
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