Big Marco River - Marco Weather Forecast

    • 79
    • 90

    Thunderstorms Likely

    • 77
    • 90

    Thunderstorms

    • 78
    • 89

    Thunderstorms

    • 78
    • 88

    Thunderstorms

    • 78
    • 88

    Thunderstorms

    • 78
    • 87

    Rain Showers

Today 15 Sep Coastal Collier County

Mostly sunny. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the mid 90s. East Winds 5 to 10 Mph, becoming southwest in the afternoon. Chance of rain 50 percent. Heat index Values up to 106.

Tonight 15 Sep Coastal Collier County

Mostly cloudy with Showers and Thunderstorms likely in the Evening, then mostly clear after midnight. Humid with Lows in the mid 70s. East Winds 5 to 10 Mph. Chance of rain 60 percent.

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Big Marco River - Marco Temperature Statistics

September Temperature

Naples, Naples Municipal Airport (12.4 miles)

  • Lowest 11 September, 2026

    75 °F

  • Average September

    83.4 °F

  • Highest 9 September, 2026

    93.7 °F

Climate (2021–2026)

Naples, Naples Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    69.4 °F

  • Average 2021–2026

    77.1 °F

  • Average High 2021–2026

    85.4 °F
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