Marathon Weather Forecast

    • 69
    • 80

    Partly Sunny

    • 62
    • 75

    Partly Sunny

    • 64
    • 69

    Partly Sunny

    • 68
    • 72

    Partly Sunny

    • 69
    • 76

    Partly Sunny

    • 61
    • 76

    Mostly Sunny

    • 60
    • 66

    Mostly Sunny

Today 27 Jan Monroe Middle Keys

Mostly sunny. Highs near 80. South Winds near 5 Mph, becoming southwest.

Tonight 27 Jan Monroe Middle Keys

Partly cloudy. Lows in the upper 60s. West to northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon Temperature Statistics

January Temperature

The Florida Keys - Marathon International Airport (2.5 miles)

  • Lowest 10 January, 2021

    55 °F

  • Average January

    67.8 °F

  • Highest 2 January, 2021

    80.1 °F

Climate (2010–Present)

The Florida Keys - Marathon International Airport (2.5 miles)

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  • Average Low 2010–Present

    75.3 °F

  • Average 2010–Present

    79.6 °F

  • Average High 2010–Present

    84.8 °F
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