Big Spanish Channel - Mayo Key Weather Forecast

    • 72
    • 80

    Partly Sunny

    • 72
    • 81

    Partly Sunny

    • 72
    • 81

    Slight Chance Rain Showers

    • 72
    • 81

    Slight Chance Rain Showers

    • 71
    • 81

    Slight Chance Rain Showers

    • 71
    • 81

    Partly Sunny

    • 72
    • 81

    Mostly Sunny

Today 3 Mar Monroe Lower Keys

Mostly sunny with a slight chance of Showers. Highs near 80. East Winds near 15 Mph. Chance of rain 10 percent.

Tonight 3 Mar Monroe Lower Keys

Partly cloudy with a slight chance of Showers. Lows in the lower 70s. East Winds near 15 Mph. Chance of rain 10 percent.

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Big Spanish Channel - Mayo Key Temperature Statistics

March Temperature

The Florida Keys - Marathon International Airport (19.3 miles)

  • Lowest 1 March, 2026

    70 °F

  • Average March

    74.8 °F

  • Highest 1 March, 2026

    79 °F

Climate (2021–Present)

The Florida Keys - Marathon International Airport (19.3 miles)

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  • Average Low 2021–2026

    75.3 °F

  • Average 2021–2026

    79.9 °F

  • Average High 2021–2026

    85 °F
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