Key West - South Side Weather Forecast

    • 77
    • 86

    Chance Rain Showers

    • 77
    • 86

    Chance Rain Showers

    • 76
    • 86

    Mostly Sunny

    • 76
    • 86

    Mostly Sunny

    • 77
    • 86

    Mostly Sunny

    • 77
    • 86

    Slight Chance Rain Showers

Today 20 Oct Monroe Lower Keys

Mostly sunny with a chance of Showers and a slight chance of Thunderstorms. Highs in the mid 80s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 20 Oct Monroe Lower Keys

Partly cloudy with a chance of Showers. Lows in the upper 70s. East Winds near 10 Mph. Chance of rain 40 percent.

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Key West - South Side Temperature Statistics

October Temperature

Key West International Airport (1.9 miles)

  • Lowest 10 October, 2025

    72 °F

  • Average October

    81.5 °F

  • Highest 1 October, 2025

    89.1 °F

Climate (2020–Present)

Key West International Airport (1.9 miles)

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  • Average Low 2020–2025

    75.6 °F

  • Average 2020–2025

    79.5 °F

  • Average High 2020–2025

    83.8 °F
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