Key Biscayne Weather Forecast

    • 84
    • 90

    Decreasing Clouds

    • 84
    • 90

    Partly Sunny

    • 84
    • 90

    Partly Sunny

    • 84
    • 90

    Partly Sunny

    • 84
    • 90

    Slight Chance Thunderstorms

    • 84
    • 89

    Slight Chance Thunderstorms

Today 14 Jul Coastal Miami Dade County

Sunny. Highs in the lower 90s. Southeast Winds 5 to 10 Mph. Heat index Values up to 105.

Tonight 14 Jul Coastal Miami Dade County

Mostly clear. Humid with Lows in the lower 80s. East Winds 5 to 10 Mph.

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Key Biscayne Temperature Statistics

July Temperature

Miami, Miami International Airport (11.2 miles)

  • Lowest 11 July, 2026

    73 °F

  • Average July

    85.8 °F

  • Highest 5 July, 2026

    94.6 °F

Climate (2021–2026)

Miami, Miami International Airport (11.2 miles)

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  • Average Low 2021–2026

    72.5 °F

  • Average 2021–2026

    78.6 °F

  • Average High 2021–2026

    85.6 °F
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