Cape Sable Weather Forecast

    • 81
    • 87

    Partly Sunny

    • 82
    • 87

    Slight Chance Thunderstorms

    • 80
    • 87

    Mostly Cloudy

    • 77
    • 87

    Chance Rain Showers

    • 78
    • 87

    Slight Chance Thunderstorms

    • 77
    • 86

    Partly Sunny

    • 78
    • 87

    Partly Sunny

Today 9 May Mainland Monroe

Sunny. Highs in the mid 90s. South Winds 5 to 10 Mph.

Tonight 9 May Mainland Monroe

Partly cloudy this Evening, then becoming mostly cloudy. Lows around 70. South Winds 5 to 10 Mph, becoming southeast after midnight.

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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

    80.3 °F

  • Highest 5 May, 2026

    86.6 °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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