Key West - South Side Weather Forecast

    • 73
    • 83

    Chance Rain Showers

    • 74
    • 83

    Chance Rain Showers

    • 74
    • 84

    Rain Showers Likely

    • 68
    • 84

    Chance Thunderstorms

    • 65
    • 80

    Chance Rain Showers

    • 66
    • 77

    Chance Rain Showers

Today 13 Mar Monroe Lower Keys

Partly sunny this Morning, then becoming mostly sunny. A slight chance of Showers and Thunderstorms. Highs in the lower 80s. Northwest to north Winds near 5 Mph, becoming southeast to south this afternoon. Chance of rain 20 percent.

Tonight 13 Mar Monroe Lower Keys

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Lows in the lower to mid 70s. Southeast Winds near 5 Mph. Chance of rain 40 percent.

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Key West - South Side Temperature Statistics

March Temperature

Key West International Airport (1.9 miles)

  • Lowest 1 March, 2026

    71.7 °F

  • Average March

    78 °F

  • Highest 10 March, 2026

    84 °F

Climate (2021–Present)

Key West International Airport (1.9 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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