Key West Weather Forecast

    • 69
    • 77

    Mostly Sunny

    • 72
    • 80

    Mostly Sunny

    • 74
    • 81

    Mostly Sunny

    • 75
    • 83

    Mostly Sunny

    • 73
    • 83

    Partly Sunny

    • 67
    • 77

    Partly Sunny

Today 12 Mar Monroe Lower Keys

Mostly sunny. Highs in the mid 70s. North to northeast Winds 5 to 10 Mph, becoming east to southeast.

Tonight 12 Mar Monroe Lower Keys

Mostly clear. Lows near 70. East to southeast Winds near 10 Mph.

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Key West Temperature Statistics

March Temperature

Key West International Airport (3.1 miles)

  • Lowest 7 March, 2025

    63.6 °F

  • Average March

    73.5 °F

  • Highest 5 March, 2025

    81.6 °F

Climate (2020–Present)

Key West International Airport (3.1 miles)

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  • Average Low 2020–2025

    75.7 °F

  • Average 2020–2025

    79.6 °F

  • Average High 2020–2025

    83.9 °F
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