Big Spanish Channel - Porpoise Key Weather Forecast

    • 79
    • 87

    Slight Chance Thunderstorms

    • 79
    • 87

    Slight Chance Thunderstorms

    • 78
    • 87

    Chance Thunderstorms

    • 79
    • 87

    Chance Thunderstorms

    • 79
    • 88

    Slight Chance Thunderstorms

    • 79
    • 88

    Chance Thunderstorms

Today 5 Oct Monroe Lower Keys

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. Southeast Winds near 5 Mph. Chance of rain 20 percent.

Tonight 5 Oct Monroe Lower Keys

Mostly cloudy with a slight chance of Showers and Thunderstorms. Lows near 80. East Winds near 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Spanish Channel - Porpoise Key Temperature Statistics

October Temperature

The Florida Keys - Marathon International Airport (18.6 miles)

  • Lowest 1 October, 2026

    77 °F

  • Average October

    83.1 °F

  • Highest 2 October, 2026

    84.9 °F

Climate (2021–2026)

The Florida Keys - Marathon International Airport (18.6 miles)

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  • Average Low 2021–2026

    75.5 °F

  • Average 2021–2026

    80.2 °F

  • Average High 2021–2026

    85.1 °F
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