Tank Island Weather Forecast

    • 84
    • 90

    Chance Thunderstorms

    • 82
    • 90

    Chance Thunderstorms

    • 84
    • 90

    Chance Thunderstorms

    • 83
    • 90

    Chance Thunderstorms

    • 84
    • 90

    Chance Thunderstorms

    • 84
    • 90

    Chance Thunderstorms

Today 4 Sep Monroe Lower Keys

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

Tonight 4 Sep Monroe Lower Keys

Partly cloudy with a chance of Showers and Thunderstorms. Lows in the lower 80s. East to southeast Winds near 10 Mph. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Tank Island Temperature Statistics

September Temperature

Key West International Airport (3.7 miles)

  • Lowest 1 September, 2026

    81 °F

  • Average September

    85.5 °F

  • Highest 1 September, 2026

    90 °F

Climate (2021–2026)

Key West International Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    75.7 °F

  • Average 2021–2026

    79.8 °F

  • Average High 2021–2026

    84.1 °F
Get WillyWeather+ to remove ads