Key Largo - Ocean Reef Harbor Weather Forecast

    • 78
    • 86

    Rain Showers

    • 80
    • 87

    Rain Showers Likely

    • 80
    • 88

    Chance Rain Showers

    • 80
    • 88

    Chance Rain Showers

    • 80
    • 88

    Chance Rain Showers

    • 80
    • 89

    Chance Rain Showers

    • 80
    • 89

    Chance Rain Showers

Today 18 Sep Monroe Upper Keys

Showers likely with a slight chance of Thunderstorms. Highs in the upper 80s. East Winds near 10 Mph. Chance of rain 70 percent.

Tonight 18 Sep Monroe Upper Keys

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms. Lows in the upper 70s. Northeast Winds near 10 Mph, decreasing to 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Key Largo - Ocean Reef Harbor Temperature Statistics

September Temperature

Homestead Air Reserve Base (13.7 miles)

  • Lowest 14 September, 2025

    73.6 °F

  • Average September

    81 °F

  • Highest 16 September, 2025

    90.3 °F

Climate (2020–Present)

Homestead Air Reserve Base (13.7 miles)

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  • Average Low 2020–2025

    71.1 °F

  • Average 2020–2025

    77.2 °F

  • Average High 2020–2025

    84.1 °F
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