Big Coppitt Key Weather Forecast

    • 70
    • 78

    Mostly Sunny

    • 72
    • 79

    Mostly Sunny

    • 73
    • 79

    Mostly Sunny

    • 73
    • 79

    Mostly Sunny

    • 73
    • 79

    Slight Chance Rain Showers

    • 73
    • 79

    Partly Sunny

Today 25 Mar Monroe Lower Keys

Mostly sunny. Highs near 80. Northeast to east Winds 5 to 10 Mph.

Tonight 25 Mar Monroe Lower Keys

Mostly clear. Lows in the upper 60s. Northeast to east Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Coppitt Key Temperature Statistics

March Temperature

Key West Naval Air Station (1.9 miles)

  • Lowest 18 March, 2026

    64 °F

  • Average March

    75.9 °F

  • Highest 5 March, 2026

    84 °F

Climate (2021–Present)

Key West Naval Air Station (1.9 miles)

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  • Average Low 2021–2026

    77.2 °F

  • Average 2021–2026

    81.7 °F

  • Average High 2021–2026

    86.5 °F
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