Cape Sable Weather Forecast

    • 78
    • 86

    Chance Rain Showers

    • 78
    • 86

    Chance Rain Showers

    • 78
    • 86

    Chance Rain Showers

    • 79
    • 87

    Chance Rain Showers

    • 80
    • 87

    Chance Rain Showers

    • 80
    • 88

    Chance Thunderstorms

Today 18 May Mainland Monroe

Mostly sunny. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 18 May Mainland Monroe

Partly cloudy in the Evening, then becoming mostly clear. A chance of Thunderstorms in the evening. A chance of Showers. Lows around 70. East Winds 10 to 15 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cape Sable Temperature Statistics

May Temperature

The Florida Keys - Marathon International Airport (26.7 miles)

  • Lowest 4 May, 2026

    72.6 °F

  • Average May

    81.7 °F

  • Highest 8 May, 2026

    87.7 °F

Climate (2021–Present)

The Florida Keys - Marathon International Airport (26.7 miles)

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  • Average Low 2021–2026

    75.3 °F

  • Average 2021–2026

    80 °F

  • Average High 2021–2026

    85 °F
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