Marathon Weather Forecast

    • 69
    • 78

    Slight Chance Rain Showers

    • 72
    • 81

    Partly Sunny

    • 74
    • 83

    Rain Showers Likely

    • 73
    • 85

    Rain Showers Likely

    • 68
    • 83

    Chance Rain Showers

    • 71
    • 81

    Mostly Sunny

Today 19 Mar Monroe Middle Keys

Mostly cloudy and windy this Morning, then becoming partly sunny. A slight chance of Showers. Cooler with Highs in the mid to upper 70s. North Winds 15 to 25 Mph with Gusts up to 35 Mph, becoming northeast and decreasing to 10 to 15 Mph. Chance of rain 20 percent.

Tonight 19 Mar Monroe Middle Keys

Partly cloudy. Lows in the mid to upper 60s. Northeast Winds 10 to 15 Mph, becoming northeast to east near 10 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon Temperature Statistics

March Temperature

The Florida Keys - Marathon International Airport (2.5 miles)

  • Lowest

  • Average March

  • Highest

Climate (2019–Present)

The Florida Keys - Marathon International Airport (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2019–2024

    75.5 °F
  • Average 2019–2024

    80.1 °F
  • Average High 2019–2024

    85.5 °F
Get an account to remove ads