Johnston Key - Southwest End Weather Forecast

    • 72
    • 80

    Increasing Clouds

    • 71
    • 79

    Chance Thunderstorms

    • 71
    • 79

    Chance Thunderstorms

    • 74
    • 81

    Chance Rain Showers

    • 74
    • 81

    Partly Sunny

    • 74
    • 80

    Mostly Sunny

Today 6 Apr Monroe Lower Keys

Mostly sunny with a slight chance of Showers. Highs in the lower 80s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 6 Apr Monroe Lower Keys

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms. Lows in the lower 70s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnston Key - Southwest End Temperature Statistics

April Temperature

Key West Naval Air Station (10.6 miles)

  • Lowest 2 April, 2026

    73.9 °F

  • Average April

    78.1 °F

  • Highest 3 April, 2026

    84 °F

Climate (2021–Present)

Key West Naval Air Station (10.6 miles)

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  • Average Low 2021–2026

    77.2 °F

  • Average 2021–2026

    81.7 °F

  • Average High 2021–2026

    86.5 °F
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