Shell Key Channel Weather Forecast

    • 75
    • 83

    Chance Rain Showers

    • 74
    • 83

    Mostly Sunny

    • 76
    • 83

    Mostly Sunny

    • 77
    • 82

    Slight Chance Rain Showers

    • 78
    • 83

    Chance Rain Showers

    • 79
    • 84

    Chance Rain Showers

Today 14 Oct Monroe Upper Keys

Mostly sunny with a slight chance of Showers. Highs in the mid 80s. Northeast Winds near 15 Mph. Chance of rain 20 percent.

Tonight 14 Oct Monroe Upper Keys

Mostly clear with a slight chance of Showers. Lows in the mid 70s. Northeast Winds near 15 Mph. Chance of rain 10 percent.

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Shell Key Channel Temperature Statistics

October Temperature

The Florida Keys - Marathon International Airport (27.3 miles)

  • Lowest 10 October, 2025

    75 °F

  • Average October

    81.4 °F

  • Highest 2 October, 2025

    88 °F

Climate (2020–Present)

The Florida Keys - Marathon International Airport (27.3 miles)

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  • Average Low 2020–2025

    75.3 °F

  • Average 2020–2025

    80 °F

  • Average High 2020–2025

    85.1 °F
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