Cape Sable Weather Forecast

    • 66
    • 76

    Mostly Sunny

    • 69
    • 76

    Partly Sunny

    • 71
    • 79

    Mostly Cloudy

    • 68
    • 78

    Rain Showers

    • 70
    • 78

    Partly Sunny

    • 69
    • 79

    Partly Sunny

Today 16 Dec Mainland Monroe

Sunny. Highs in the upper 70s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 Dec Mainland Monroe

Mostly clear. Lows around 60. Northeast Winds 10 to 15 Mph.

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Cape Sable Temperature Statistics

December Temperature

The Florida Keys - Marathon International Airport (26.7 miles)

  • Lowest 11 December, 2025

    66.9 °F

  • Average December

    76.5 °F

  • Highest 1 December, 2025

    82 °F

Climate (2020–Present)

The Florida Keys - Marathon International Airport (26.7 miles)

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  • Average Low 2020–2025

    75.3 °F

  • Average 2020–2025

    80 °F

  • Average High 2020–2025

    85.1 °F
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