Helen Key Weather Forecast

    • 82
    • 88

    Chance Thunderstorms

    • 82
    • 89

    Mostly Sunny

    • 82
    • 88

    Mostly Sunny

    • 83
    • 88

    Partly Sunny

    • 83
    • 88

    Slight Chance Thunderstorms

    • 83
    • 88

    Slight Chance Thunderstorms

Today 15 Aug Coastal Collier County

Sunny with a chance of Showers and Thunderstorms. 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 109.

Tonight 15 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. Southeast Winds around 5 Mph. Chance of rain 40 percent. Heat index Values up to 106 early in the evening.

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Helen Key Temperature Statistics

August Temperature

Naples, Naples Municipal Airport (18.6 miles)

  • Lowest 6 August, 2026

    73.7 °F

  • Average August

    84.2 °F

  • Highest 10 August, 2026

    94.6 °F

Climate (2021–2026)

Naples, Naples Municipal Airport (18.6 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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