Johnston Key - Southwest End Weather Forecast

    • 77
    • 84

    Rain Showers

    • 76
    • 85

    Chance Rain Showers

    • 76
    • 85

    Breezy

    • 75
    • 85

    Breezy

    • 75
    • 83

    Mostly Sunny

    • 75
    • 83

    Mostly Sunny

Today 18 Oct Monroe Lower Keys

Showers likely with a slight chance of Thunderstorms. Breezy with Highs in the mid 80s. Northeast Winds 15 to 20 Mph. Chance of rain 60 percent.

Tonight 18 Oct Monroe Lower Keys

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms. Breezy with Lows in the upper 70s. Northeast Winds 15 to 20 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnston Key - Southwest End Temperature Statistics

October Temperature

Key West Naval Air Station (10.6 miles)

  • Lowest 1 October, 2026

    75.9 °F

  • Average October

    84.5 °F

  • Highest 9 October, 2026

    90 °F

Climate (2021–2026)

Key West Naval Air Station (10.6 miles)

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  • Average Low 2021–2026

    77.3 °F

  • Average 2021–2026

    81.8 °F

  • Average High 2021–2026

    86.5 °F
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