Summerland Key - Southwest Side Weather Forecast

    • 84
    • 91

    Partly Sunny

    • 83
    • 90

    Partly Sunny

    • 84
    • 91

    Mostly Sunny

    • 83
    • 91

    Partly Sunny

    • 84
    • 91

    Mostly Sunny

    • 83
    • 91

    Chance Rain Showers

Today 20 Aug Monroe Lower Keys

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 10 percent.

Tonight 20 Aug Monroe Lower Keys

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 80s. Southwest Winds 5 to 10 Mph, becoming southeast after midnight.

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  • Temperature Forecast NOAA

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Summerland Key - Southwest Side Temperature Statistics

August Temperature

Key West Naval Air Station (15.5 miles)

  • Lowest 6 August, 2026

    75.9 °F

  • Average August

    86.3 °F

  • Highest 14 August, 2026

    93 °F

Climate (2021–2026)

Key West Naval Air Station (15.5 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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