Johnson Keys - North Side Weather Forecast

    • 74
    • 78

    Isolated Thunderstorms

    • 73
    • 78

    Rain Showers

    • 73
    • 79

    Rain Showers

    • 73
    • 79

    Mostly Sunny

    • 73
    • 79

    Mostly Sunny

    • 73
    • 79

    Mostly Sunny

    • 72
    • 78

    Partly Sunny

Today 6 Mar Monroe Lower Keys

Mostly sunny with a slight chance of Showers and Thunderstorms. Breezy. Highs in the lower 80s. East Winds 15 to 20 Mph. Chance of rain 20 percent.

Tonight 6 Mar Monroe Lower Keys

Partly cloudy with a slight chance of Showers and Thunderstorms. Breezy. Lows in the lower to mid 70s. East Winds 15 to 20 Mph. Chance of rain 20 percent.

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Johnson Keys - North Side Temperature Statistics

March Temperature

The Florida Keys - Marathon International Airport (17.4 miles)

  • Lowest 1 March, 2026

    70.6 °F

  • Average March

    77 °F

  • Highest 1 March, 2026

    81.6 °F

Climate (2021–Present)

The Florida Keys - Marathon International Airport (17.4 miles)

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  • Average Low 2021–2026

    75.3 °F

  • Average 2021–2026

    80 °F

  • Average High 2021–2026

    85 °F
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