Key Largo Weather Forecast

    • 84
    • 89

    Chance Thunderstorms

    • 83
    • 88

    Chance Thunderstorms

    • 84
    • 88

    Thunderstorms Likely

    • 83
    • 89

    Thunderstorms Likely

    • 83
    • 88

    Thunderstorms Likely

    • 83
    • 88

    Chance Thunderstorms

Today 9 Sep Monroe Upper Keys

Partly sunny with a chance of Showers and a slight chance of Thunderstorms. Highs in the lower 90s. East Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 9 Sep Monroe Upper Keys

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Lows in the lower 80s. East Winds near 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Key Largo Temperature Statistics

September Temperature

Homestead Air Reserve Base (28.6 miles)

  • Lowest 6 September, 2026

    75 °F

  • Average September

    81.8 °F

  • Highest 3 September, 2026

    91.2 °F

Climate (2021–2026)

Homestead Air Reserve Base (28.6 miles)

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  • Average Low 2021–2026

    71.1 °F

  • Average 2021–2026

    77.2 °F

  • Average High 2021–2026

    84.1 °F
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