Marathon Weather Forecast

    • 79
    • 88

    Slight Chance Thunderstorms

    • 80
    • 89

    Slight Chance Thunderstorms

    • 79
    • 89

    Chance Rain Showers

    • 78
    • 88

    Chance Rain Showers

    • 78
    • 88

    Chance Rain Showers

    • 79
    • 88

    Chance Rain Showers

Today 25 May Monroe Middle Keys

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Breezy. Highs in the mid to upper 80s. East to southeast Winds 15 to 20 Mph. Chance of rain 30 percent.

Tonight 25 May Monroe Middle Keys

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Breezy. Lows in the upper 70s. East to southeast Winds 15 to 20 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon Temperature Statistics

May Temperature

The Florida Keys - Marathon International Airport (2.5 miles)

  • Lowest 11 May, 2022

    71.1 °F
  • Average May

    81.6 °F
  • Highest 7 May, 2022

    90 °F

Climate (2010–Present)

The Florida Keys - Marathon International Airport (2.5 miles)

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  • Average Low 2010–Present

    75 °F
  • Average 2010–Present

    79.2 °F
  • Average High 2010–Present

    84.5 °F
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