Key West - South Side Weather Forecast

    • 81
    • 91

    Chance Rain Showers

    • 80
    • 91

    Chance Rain Showers

    • 80
    • 91

    Chance Rain Showers

    • 81
    • 91

    Slight Chance Thunderstorms

    • 81
    • 91

    Slight Chance Rain Showers

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    • 92

    Partly Sunny

Today 17 May Monroe Lower Keys

Partly sunny with a chance of Showers and a slight chance of Thunderstorms. Highs in the upper 80s to lower 90s. East to southeast Winds 10 to 15 Mph, increasing to near 15 Mph. Chance of rain 40 percent.

Tonight 17 May Monroe Lower Keys

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms. Breezy. Lows in the lower 80s. East Winds 15 to 20 Mph. Chance of rain 30 percent.

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Key West - South Side Temperature Statistics

May Temperature

Key West International Airport (1.9 miles)

  • Lowest 6 May, 2026

    76.6 °F
  • Average May

    84.9 °F
  • Highest 8 May, 2026

    92.6 °F

Climate (2021–Present)

Key West International Airport (1.9 miles)

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  • Average Low 2021–2026

    75.5 °F
  • Average 2021–2026

    79.6 °F
  • Average High 2021–2026

    83.9 °F
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