Key Biscayne Weather Forecast

    • 83
    • 89

    Slight Chance Thunderstorms

    • 84
    • 89

    Chance Thunderstorms

    • 85
    • 89

    Chance Thunderstorms

    • 84
    • 90

    Chance Thunderstorms

    • 83
    • 88

    Thunderstorms Likely

    • 83
    • 88

    Thunderstorms Likely

Today 2 Aug Coastal Miami Dade County

Sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 2 Aug Coastal Miami Dade County

Mostly clear. A slight chance of Showers and Thunderstorms this evening. Lows around 80. South Winds 5 to 10 Mph. Chance of rain 20 percent.

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Key Biscayne Temperature Statistics

August Temperature

Miami, Miami International Airport (11.2 miles)

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  • Average August

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Climate (2020–Present)

Miami, Miami International Airport (11.2 miles)

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  • Average Low 2020–2025

    72.7 °F

  • Average 2020–2025

    78.6 °F

  • Average High 2020–2025

    85.4 °F
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