Johnston Key - Southwest End Weather Forecast

    • 77
    • 83

    Mostly Sunny

    • 80
    • 84

    Mostly Sunny

    • 77
    • 85

    Partly Sunny

    • 75
    • 83

    Chance Thunderstorms

    • 76
    • 82

    Chance Thunderstorms

    • 78
    • 83

    Partly Sunny

Today 30 Apr Monroe Lower Keys

Mostly sunny. Highs in the mid 80s. Southeast to south Winds near 5 Mph, becoming light and variable.

Tonight 30 Apr Monroe Lower Keys

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 70s. Light and variable Winds.

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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 13 April, 2026

    71.1 °F

  • Average April

    77.4 °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

    81.8 °F

  • Average High 2021–2026

    86.5 °F
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