Fleming Key Weather Forecast

    • 70
    • 76

    Mostly Sunny

    • 70
    • 76

    Mostly Sunny

    • 71
    • 76

    Mostly Sunny

    • 73
    • 78

    Mostly Sunny

    • 74
    • 78

    Mostly Sunny

    • 73
    • 79

    Partly Sunny

Today 22 Mar Monroe Lower Keys

Mostly sunny. Highs in the upper 70s. Northeast to east Winds 5 to 10 Mph.

Tonight 22 Mar Monroe Lower Keys

Mostly clear. Lows in the upper 60s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fleming Key Temperature Statistics

March Temperature

Key West International Airport (3.1 miles)

  • Lowest 18 March, 2026

    63.6 °F

  • Average March

    77.5 °F

  • Highest 13 March, 2026

    86.6 °F

Climate (2021–Present)

Key West International Airport (3.1 miles)

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  • Average Low 2021–2026

    75.5 °F

  • Average 2021–2026

    79.5 °F

  • Average High 2021–2026

    83.9 °F
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