Johnson Keys - South End Weather Forecast

    • 76
    • 86

    Rain Showers

    • 76
    • 84

    Rain Showers

    • 76
    • 85

    Slight Chance Rain Showers

    • 75
    • 84

    Breezy

    • 75
    • 84

    Mostly Sunny

    • 75
    • 83

    Mostly Sunny

Today 17 Oct Monroe Lower Keys

Showers likely with a chance of Thunderstorms. Highs in the upper 80s. Northeast Winds near 5 Mph, becoming north. Chance of rain 60 percent.

Tonight 17 Oct Monroe Lower Keys

Showers with a chance of Thunderstorms. Lows in the mid 70s. Northeast Winds 10 to 15 Mph. Chance of rain 90 percent.

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Johnson Keys - South End Temperature Statistics

October Temperature

The Florida Keys - Marathon International Airport (15.5 miles)

  • Lowest 1 October, 2026

    76.6 °F

  • Average October

    84.9 °F

  • Highest 12 October, 2026

    90.6 °F

Climate (2021–2026)

The Florida Keys - Marathon International Airport (15.5 miles)

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  • Average Low 2021–2026

    75.6 °F

  • Average 2021–2026

    80.2 °F

  • Average High 2021–2026

    85.1 °F
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