Round Key Weather Forecast

    • 81
    • 89

    Thunderstorms Likely

    • 80
    • 91

    Thunderstorms Likely

    • 79
    • 90

    Thunderstorms

    • 78
    • 88

    Thunderstorms

    • 79
    • 87

    Thunderstorms

    • 79
    • 88

    Thunderstorms Likely

Today 4 Aug Coastal Collier County

Sunny. A slight chance of Showers and Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Humid with Highs in the lower 90s. Southeast Winds around 5 Mph, becoming southwest in the afternoon. Chance of rain 70 percent. Heat index Values up to 107.

Tonight 4 Aug Coastal Collier County

Partly cloudy with Showers and Thunderstorms likely in the Evening, then mostly clear with a chance of Showers and Thunderstorms after midnight. Humid with Lows in the upper 70s. South Winds around 5 Mph, becoming southeast after midnight. Chance of rain 70 percent.

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Round Key Temperature Statistics

August Temperature

Naples, Naples Municipal Airport (26.1 miles)

  • Lowest 1 August, 2025

    82 °F

  • Average August

    87.2 °F

  • Highest 1 August, 2025

    93 °F

Climate (2020–Present)

Naples, Naples Municipal Airport (26.1 miles)

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  • Average Low 2020–2025

    69.3 °F

  • Average 2020–2025

    76.8 °F

  • Average High 2020–2025

    85 °F
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