Tank Island Weather Forecast

    • 84
    • 90

    Partly Sunny

    • 83
    • 90

    Mostly Cloudy

    • 83
    • 90

    Partly Sunny

    • 84
    • 90

    Mostly Sunny

    • 84
    • 90

    Slight Chance Thunderstorms

    • 84
    • 90

    Chance Thunderstorms

    • 84
    • 90

    Chance Thunderstorms

Today 19 Aug Monroe Lower Keys

Mostly sunny. Highs in the lower 90s. Northwest Winds 5 to 10 Mph.

Tonight 19 Aug Monroe Lower Keys

Mostly clear with a slight chance of Showers and Thunderstorms. Lows in the lower 80s. Northwest to north Winds 5 to 10 Mph, becoming variable near 5 Mph. Chance of rain 10 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tank Island Temperature Statistics

August Temperature

Key West International Airport (3.7 miles)

  • Lowest 6 August, 2026

    74.6 °F

  • Average August

    86.3 °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

    79.7 °F

  • Average High 2021–2026

    84.1 °F
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