Key West - South Side Weather Forecast

    • 72
    • 79

    Mostly Sunny

    • 72
    • 81

    Mostly Sunny

    • 73
    • 81

    Partly Sunny

    • 73
    • 81

    Chance Rain Showers

    • 73
    • 83

    Chance Rain Showers

    • 74
    • 82

    Mostly Sunny

Today 26 Mar Monroe Lower Keys

Mostly sunny. Highs in the upper 70s. Northeast Winds 5 to 10 Mph, becoming north near 10 Mph this morning. Winds then becoming northeast 5 to 10 Mph this afternoon.

Tonight 26 Mar Monroe Lower Keys

Mostly clear. Lows in the lower 70s. Northeast Winds increasing to 10 to 15 Mph.

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Key West - South Side Temperature Statistics

March Temperature

Key West International Airport (1.9 miles)

  • Lowest 22 March, 2025

    60.1 °F

  • Average March

    73.1 °F

  • Highest 16 March, 2025

    83.6 °F

Climate (2020–Present)

Key West International Airport (1.9 miles)

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  • Average Low 2020–2025

    75.6 °F

  • Average 2020–2025

    79.6 °F

  • Average High 2020–2025

    83.8 °F
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