Shell Key - Northwest Side Weather Forecast

    • 72
    • 83

    Rain Showers

    • 68
    • 78

    Rain Showers

    • 70
    • 76

    Mostly Sunny

    • 72
    • 78

    Mostly Sunny

    • 74
    • 80

    Rain Showers

    • 74
    • 81

    Rain Showers

    • 72
    • 80

    Partly Sunny

Today 29 Oct Monroe Upper Keys

Mostly sunny with a slight chance of Showers. Highs in the mid 80s. North Winds near 10 Mph, increasing to 10 to 15 Mph. Chance of rain 20 percent.

Tonight 29 Oct Monroe Upper Keys

Partly Cloudy, then becoming mostly cloudy. A chance of Showers. Becoming windy. Lows in the lower 70s. North Winds 10 to 15 Mph, becoming northwest and increasing to near 20 Mph late. Chance of rain 40 percent.

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Shell Key - Northwest Side Temperature Statistics

October Temperature

The Florida Keys - Marathon International Airport (26.7 miles)

  • Lowest 10 October, 2025

    75 °F

  • Average October

    80.8 °F

  • Highest 2 October, 2025

    88 °F

Climate (2020–Present)

The Florida Keys - Marathon International Airport (26.7 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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