Johnston Key - Southwest End Weather Forecast

    • 82
    • 89

    Slight Chance Thunderstorms

    • 82
    • 89

    Slight Chance Thunderstorms

    • 83
    • 89

    Slight Chance Thunderstorms

    • 83
    • 90

    Mostly Sunny

    • 83
    • 90

    Partly Sunny

    • 84
    • 90

    Partly Sunny

Today 13 Jun Monroe Lower Keys

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. East to southeast Winds near 5 Mph. Chance of rain 20 percent.

Tonight 13 Jun Monroe Lower Keys

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows near 80. East to southeast Winds 5 to 10 Mph. Chance of rain 10 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnston Key - Southwest End Temperature Statistics

June Temperature

Key West Naval Air Station (10.6 miles)

  • Lowest 5 June, 2026

    73.9 °F

  • Average June

    82.8 °F

  • Highest 2 June, 2026

    90 °F

Climate (2021–Present)

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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