Marathon Weather Forecast

    • 70
    • 77

    Mostly Cloudy

    • 70
    • 78

    Partly Sunny

    • 71
    • 79

    Mostly Sunny

    • 72
    • 78

    Mostly Sunny

    • 73
    • 78

    Mostly Sunny

    • 74
    • 79

    Mostly Sunny

    • 74
    • 80

    Mostly Sunny

Today 12 Nov Monroe Middle Keys

Partly sunny. Breezy early. Highs in the upper 70s. North to northeast Winds 15 to 20 Mph, becoming northeast and decreasing to near 15 Mph.

Tonight 12 Nov Monroe Middle Keys

Partly cloudy. Lows near 70. Northeast Winds near 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon Temperature Statistics

November Temperature

The Florida Keys - Marathon International Airport (2.5 miles)

  • Lowest 10 November, 2025

    63 °F

  • Average November

    76.4 °F

  • Highest 8 November, 2025

    84 °F

Climate (2020–Present)

The Florida Keys - Marathon International Airport (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    75.3 °F

  • Average 2020–2025

    80 °F

  • Average High 2020–2025

    85.1 °F
Get WillyWeather+ to remove ads