Tank Island Weather Forecast

    • 83
    • 90

    Chance Thunderstorms

    • 83
    • 90

    Chance Thunderstorms

    • 84
    • 90

    Chance Thunderstorms

    • 84
    • 90

    Thunderstorms Likely

    • 83
    • 90

    Thunderstorms Likely

    • 83
    • 89

    Rain Showers Likely

Today 29 Aug Monroe Lower Keys

Partly cloudy with a chance of Showers and Thunderstorms. Highs near 90. East Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 29 Aug Monroe Lower Keys

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Lows in the lower to mid 80s. East Winds near 10 Mph, becoming east to southeast and increasing to 10 to 15 Mph. Chance of rain 40 percent.

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Tank Island Temperature Statistics

August Temperature

Key West International Airport (3.7 miles)

  • Lowest 6 August, 2026

    74.6 °F

  • Average August

    86.7 °F

  • Highest 1 August, 2026

    93.7 °F

Climate (2021–2026)

Key West International Airport (3.7 miles)

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  • Average Low 2021–2026

    75.7 °F

  • Average 2021–2026

    79.8 °F

  • Average High 2021–2026

    84.1 °F
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