Shell Key Channel Weather Forecast

    • 80
    • 86

    Chance Rain Showers

    • 80
    • 86

    Chance Rain Showers

    • 80
    • 86

    Chance Thunderstorms

    • 80
    • 85

    Chance Thunderstorms

    • 80
    • 85

    Chance Thunderstorms

    • 80
    • 85

    Chance Thunderstorms

Today 24 May Monroe Upper Keys

Partly sunny with a chance of Showers and a slight chance of Thunderstorms Early, then becoming mostly sunny with a slight chance of Showers and Thunderstorms. Breezy. Highs in the upper 80s. East Winds 15 to 20 Mph. Chance of rain 40 percent.

Tonight 24 May Monroe Upper Keys

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Breezy. Lows around 80. East Winds 15 to 20 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shell Key Channel Temperature Statistics

May Temperature

The Florida Keys - Marathon International Airport (27.3 miles)

  • Lowest 4 May, 2026

    72.6 °F
  • Average May

    81.9 °F
  • Highest 8 May, 2026

    87.7 °F

Climate (2021–Present)

The Florida Keys - Marathon International Airport (27.3 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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