Johnston Key - Southwest End Weather Forecast

    • 80
    • 86

    Mostly Sunny

    • 80
    • 86

    Mostly Sunny

    • 81
    • 87

    Mostly Sunny

    • 81
    • 86

    Mostly Sunny

    • 81
    • 86

    Mostly Sunny

    • 81
    • 86

    Mostly Sunny

Today 15 May Monroe Lower Keys

Mostly clear. Highs in the mid to upper 80s. Lows in the upper 70s. East Winds 5 to 10 Mph.

Tonight 15 May Monroe Lower Keys

Mostly clear. Highs in the mid to upper 80s. Lows in the upper 70s. East Winds 5 to 10 Mph.

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Johnston Key - Southwest End Temperature Statistics

May Temperature

Key West Naval Air Station (10.6 miles)

  • Lowest 12 May, 2025

    77 °F

  • Average May

    85.5 °F

  • Highest 6 May, 2025

    92.6 °F

Climate (2020–Present)

Key West Naval Air Station (10.6 miles)

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  • Average Low 2020–2025

    77.4 °F

  • Average 2020–2025

    81.9 °F

  • Average High 2020–2025

    86.6 °F
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