Johnston Key - Southwest End Weather Forecast

    • 78
    • 85

    Rain Showers

    • 76
    • 84

    Isolated Thunderstorms

    • 74
    • 82

    Partly Sunny

    • 72
    • 80

    Rain Showers

    • 71
    • 78

    Mostly Sunny

    • 73
    • 79

    Mostly Sunny

Today 27 Oct Monroe Lower Keys

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Highs in the mid 80s. East Winds near 10 Mph, decreasing to 5 to 10 Mph. Chance of rain 30 percent.

Tonight 27 Oct Monroe Lower Keys

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. Northeast to east Winds 5 to 10 Mph, becoming north to northeast. Chance of rain 20 percent.

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Johnston Key - Southwest End Temperature Statistics

October Temperature

Key West Naval Air Station (10.6 miles)

  • Lowest 10 October, 2025

    73.9 °F

  • Average October

    81 °F

  • Highest 1 October, 2025

    88 °F

Climate (2020–Present)

Key West Naval Air Station (10.6 miles)

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  • Average Low 2020–2025

    77.3 °F

  • Average 2020–2025

    81.9 °F

  • Average High 2020–2025

    86.6 °F
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