Marathon Weather Forecast

    • 82
    • 91

    Chance Thunderstorms

    • 82
    • 92

    Chance Rain Showers

    • 83
    • 90

    Chance Rain Showers

    • 83
    • 90

    Chance Rain Showers

    • 83
    • 90

    Chance Rain Showers

    • 83
    • 90

    Chance Rain Showers

Today 23 Jul Monroe Middle Keys

Partly cloudy with a slight chance of Showers and Thunderstorms this Morning, then partly to mostly cloudy with a chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Variable Winds near 5 Mph, becoming southwest 5 to 10 Mph. Chance of rain 40 percent.

Tonight 23 Jul Monroe Middle Keys

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s to lower 80s. South to southwest Winds near 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon Temperature Statistics

July Temperature

Marathon, Marathon Airport (2.5 miles)

  • Lowest 12 July, 2019

    75 °F
  • Average July

    86.1 °F
  • Highest 4 July, 2019

    93.9 °F

Climate (2010–Present)

Marathon, Marathon Airport (2.5 miles)

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  • Average Low 2010–Present

    75.1 °F
  • Average 2010–Present

    79.4 °F
  • Average High 2010–Present

    84.5 °F
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