Marathon Weather Forecast

    • 68
    • 77

    Mostly Sunny

    • 67
    • 78

    Mostly Sunny

    • 69
    • 78

    Mostly Sunny

    • 71
    • 79

    Mostly Sunny

    • 72
    • 80

    Mostly Sunny

    • 73
    • 81

    Mostly Sunny

    • 73
    • 82

    Mostly Sunny

Today 15 Nov Monroe Middle Keys

Mostly sunny. Highs in the upper 70s. North to northeast Winds 5 to 10 Mph, becoming northeast to east.

Tonight 15 Nov Monroe Middle Keys

Mostly clear. Lows in the mid to upper 60s. Northeast to east Winds 5 to 10 Mph.

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Marathon Temperature Statistics

November Temperature

The Florida Keys - Marathon International Airport (2.5 miles)

  • Lowest 11 November, 2025

    55 °F

  • Average November

    73.7 °F

  • Highest 8 November, 2025

    84 °F

Climate (2020–Present)

The Florida Keys - Marathon International Airport (2.5 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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