Cape Sable Weather Forecast

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    Thunderstorms Likely

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    Thunderstorms Likely

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    Chance Thunderstorms

Today 7 Sep Mainland Monroe

Mostly sunny with a chance of Showers and Thunderstorms. Highs in the lower 90s. Light and variable Winds, becoming southwest around 5 Mph this afternoon. Chance of rain 50 percent.

Tonight 7 Sep Mainland Monroe

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. West Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cape Sable Temperature Statistics

September Temperature

The Florida Keys - Marathon International Airport (26.7 miles)

  • Lowest 4 September, 2026

    78.7 °F

  • Average September

    86.5 °F

  • Highest 1 September, 2026

    92.6 °F

Climate (2021–2026)

The Florida Keys - Marathon International Airport (26.7 miles)

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  • Average Low 2021–2026

    75.5 °F

  • Average 2021–2026

    80.1 °F

  • Average High 2021–2026

    85.1 °F
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