Big Spanish Channel - Mayo Key Weather Forecast

    • 47
    • 70

    Rain Showers Likely

    • 49
    • 58

    Breezy

    • 52
    • 62

    Mostly Sunny

    • 59
    • 68

    Partly Sunny

    • 61
    • 71

    Mostly Sunny

    • 54
    • 71

    Partly Sunny

Today 31 Jan Monroe Lower Keys

Showers likely. Becoming windy. Highs in the upper 60s. Northwest Winds near 10 Mph, increasing to 20 to 25 Mph. Chance of rain 60 percent.

Tonight 31 Jan Monroe Lower Keys

Mostly cloudy with a slight chance of Showers. Very windy. Colder with Lows in the mid to upper 40s. Northwest Winds 25 to 30 Mph, increasing to near 30 Mph. Wind chill Values near 40 after midnight. Chance of rain 10 percent.

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Big Spanish Channel - Mayo Key Temperature Statistics

January Temperature

The Florida Keys - Marathon International Airport (19.3 miles)

  • Lowest 16 January, 2026

    51.7 °F

  • Average January

    70 °F

  • Highest 26 January, 2026

    82.7 °F

Climate (2021–Present)

The Florida Keys - Marathon International Airport (19.3 miles)

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  • Average Low 2021–2026

    75.4 °F

  • Average 2021–2026

    80.1 °F

  • Average High 2021–2026

    85.1 °F
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