Key West - South Side Weather Forecast

    • 68
    • 78

    Mostly Sunny

    • 69
    • 78

    Mostly Sunny

    • 71
    • 79

    Mostly Sunny

    • 71
    • 80

    Mostly Sunny

    • 72
    • 79

    Mostly Sunny

    • 71
    • 80

    Partly Sunny

    • 68
    • 77

    Partly Sunny

Today 6 Jan Monroe Lower Keys

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

Tonight 6 Jan Monroe Lower Keys

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

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Key West - South Side Temperature Statistics

January Temperature

Key West International Airport (1.9 miles)

  • Lowest 2 January, 2026

    55 °F

  • Average January

    66.1 °F

  • Highest 4 January, 2026

    78.1 °F

Climate (2021–Present)

Key West International Airport (1.9 miles)

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  • Average Low 2021–2026

    75.6 °F

  • Average 2021–2026

    79.5 °F

  • Average High 2021–2026

    83.8 °F
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