Fleming Key Weather Forecast

    • 79
    • 87

    Rain Showers

    • 80
    • 88

    Rain Showers Likely

    • 80
    • 88

    Chance Rain Showers

    • 81
    • 88

    Chance Rain Showers

    • 81
    • 87

    Chance Rain Showers

    • 82
    • 88

    Chance Rain Showers

Today 18 Sep Monroe Lower Keys

Showers likely with a slight chance of Thunderstorms. Highs in the upper 80s. East Winds near 10 Mph. Chance of rain 70 percent.

Tonight 18 Sep Monroe Lower Keys

Showers likely with a slight chance of Thunderstorms. Lows in the upper 70s. Northeast Winds near 10 Mph, decreasing to 5 to 10 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fleming Key Temperature Statistics

September Temperature

Key West International Airport (3.1 miles)

  • Lowest 4 September, 2025

    75 °F

  • Average September

    83.7 °F

  • Highest 11 September, 2025

    91 °F

Climate (2020–Present)

Key West International Airport (3.1 miles)

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  • Average Low 2020–2025

    75.6 °F

  • Average 2020–2025

    79.6 °F

  • Average High 2020–2025

    83.9 °F
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