Tank Island Weather Forecast

    • 80
    • 87

    Rain Showers Likely

    • 81
    • 87

    Rain Showers Likely

    • 81
    • 88

    Rain Showers Likely

    • 81
    • 88

    Rain Showers Likely

    • 80
    • 87

    Rain Showers Likely

Today 22 Sep Monroe Lower Keys

Showers likely with a chance of Thunderstorms. Highs in the upper 80s. South Winds 10 to 15 Mph. Chance of rain 60 percent.

Tonight 22 Sep Monroe Lower Keys

Showers likely with a chance of Thunderstorms. Lows in the upper 70s. South Winds 10 to 15 Mph. Chance of rain 70 percent.

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Tank Island Temperature Statistics

September Temperature

Key West International Airport (3.7 miles)

  • Lowest 5 September, 2026

    78.7 °F

  • Average September

    85.7 °F

  • Highest 12 September, 2026

    94.6 °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

    84.2 °F
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