Big Spanish Channel - Water Key (West End) Weather Forecast

    • 69
    • 74

    Mostly Sunny

    • 69
    • 76

    Mostly Sunny

    • 70
    • 76

    Mostly Sunny

    • 71
    • 77

    Mostly Sunny

    • 71
    • 78

    Mostly Sunny

    • 72
    • 78

    Mostly Sunny

    • 72
    • 79

    Mostly Sunny

Today 21 Mar Monroe Lower Keys

Mostly sunny. Highs in the mid 70s. Northeast Winds 10 to 15 Mph, decreasing to 5 to 10 Mph.

Tonight 21 Mar Monroe Lower Keys

Mostly clear. Lows in the mid to upper 60s. North to northeast Winds near 10 Mph.

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Big Spanish Channel - Water Key (West End) Temperature Statistics

March Temperature

The Florida Keys - Marathon International Airport (18 miles)

  • Lowest 18 March, 2026

    61.6 °F

  • Average March

    77 °F

  • Highest 16 March, 2026

    84.7 °F

Climate (2021–Present)

The Florida Keys - Marathon International Airport (18 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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