Round Island Park West Weather Forecast

    • 74
    • 85

    Thunderstorms Likely

    • 76
    • 86

    Thunderstorms Likely

    • 76
    • 86

    Thunderstorms Likely

    • 77
    • 86

    Thunderstorms Likely

    • 76
    • 87

    Thunderstorms Likely

    • 75
    • 88

    Chance Thunderstorms

    • 76
    • 89

    Chance Thunderstorms

Today 17 Sep Coastal Indian River

Cloudy with Showers and Thunderstorms likely. Highs in the mid 80s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 17 Sep Coastal Indian River

Mostly cloudy early in the evening then considerable cloudiness. A chance of Showers and Thunderstorms. Lows in the mid 70s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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Round Island Park West Temperature Statistics

September Temperature

Fort Pierce, St. Lucie County International Airport (5 miles)

  • Lowest 15 September, 2025

    70 °F

  • Average September

    79.4 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Fort Pierce, St. Lucie County International Airport (5 miles)

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  • Average Low 2020–2025

    66.1 °F

  • Average 2020–2025

    74.7 °F

  • Average High 2020–2025

    83.5 °F
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