Round Key Weather Forecast

    • 80
    • 88

    Chance Thunderstorms

    • 80
    • 88

    Thunderstorms Likely

    • 80
    • 89

    Chance Thunderstorms

    • 80
    • 89

    Chance Thunderstorms

    • 81
    • 89

    Slight Chance Thunderstorms

    • 81
    • 89

    Chance Thunderstorms

Today 8 Aug 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 lower 90s. Southeast Winds 5 to 10 Mph, becoming south in the afternoon. Chance of rain 50 percent. Heat index Values up to 107.

Tonight 8 Aug Coastal Collier County

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the upper 70s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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Round Key Temperature Statistics

August Temperature

Naples, Naples Municipal Airport (26.1 miles)

  • Lowest 5 August, 2026

    73.9 °F

  • Average August

    83 °F

  • Highest 2 August, 2026

    91.7 °F

Climate (2021–2026)

Naples, Naples Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    69.4 °F

  • Average 2021–2026

    77.1 °F

  • Average High 2021–2026

    85.3 °F
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