Shell Key Channel Weather Forecast

    • 71
    • 78

    Rain Showers Likely

    • 67
    • 77

    Chance Rain Showers

    • 68
    • 75

    Partly Sunny

    • 70
    • 74

    Partly Sunny

    • 73
    • 76

    Partly Sunny

    • 73
    • 79

    Mostly Cloudy

Today 13 Dec Monroe Upper Keys

Partly sunny with a chance of Showers and a slight chance of Thunderstorms in the afternoon. Highs in the upper 70s. East Winds 10 to 15 Mph. Chance of rain 30 percent.

Tonight 13 Dec Monroe Upper Keys

Showers likely with a chance of Thunderstorms. Lows in the lower 70s. East Winds 10 to 15 Mph, decreasing to near 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shell Key Channel Temperature Statistics

December Temperature

The Florida Keys - Marathon International Airport (27.3 miles)

  • Lowest 10 December, 2025

    71.1 °F

  • Average December

    77.7 °F

  • Highest 1 December, 2025

    82 °F

Climate (2020–Present)

The Florida Keys - Marathon International Airport (27.3 miles)

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  • Average Low 2020–2025

    75.3 °F

  • Average 2020–2025

    80 °F

  • Average High 2020–2025

    85.1 °F
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