Big Spanish Channel - Mayo Key Weather Forecast

    • 74
    • 83

    Decreasing Clouds

    • 74
    • 84

    Partly Sunny

    • 74
    • 84

    Mostly Cloudy

    • 71
    • 84

    Breezy

    • 71
    • 82

    Breezy

    • 71
    • 81

    Mostly Cloudy

Today 17 Apr Monroe Lower Keys

Mostly sunny. Highs in the lower 80s. Northeast Winds near 10 Mph.

Tonight 17 Apr Monroe Lower Keys

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

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Big Spanish Channel - Mayo Key Temperature Statistics

April Temperature

The Florida Keys - Marathon International Airport (19.3 miles)

  • Lowest 11 April, 2026

    72.6 °F

  • Average April

    78.2 °F

  • Highest 2 April, 2026

    82.7 °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

    80 °F

  • Average High 2021–2026

    85.1 °F
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