Marathon Weather Forecast

    • 75
    • 82

    Slight Chance Rain Showers

    • 75
    • 82

    Chance Rain Showers

    • 76
    • 83

    Partly Sunny

    • 73
    • 83

    Partly Sunny

    • 64
    • 79

    Breezy

    • 68
    • 75

    Mostly Cloudy

    • 71
    • 76

    Mostly Cloudy

Today 6 Nov Monroe Middle Keys

Partly sunny with a slight chance of Showers. Highs in the lower to mid 80s. Northeast to east Winds near 10 Mph, increasing to 10 to 15 Mph. Chance of rain 10 percent.

Tonight 6 Nov Monroe Middle Keys

Partly cloudy with a slight chance of Showers. Lows in the mid 70s. Northeast to east Winds near 10 Mph. Chance of rain 20 percent.

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Marathon Temperature Statistics

November Temperature

The Florida Keys - Marathon International Airport (2.5 miles)

  • Lowest 1 November, 2025

    71.1 °F

  • Average November

    75.2 °F

  • Highest 3 November, 2025

    81 °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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