Long Key Weather Forecast

    • 79
    • 84

    Chance Thunderstorms

    • 80
    • 85

    Chance Rain Showers

    • 80
    • 85

    Slight Chance Thunderstorms

    • 81
    • 85

    Chance Thunderstorms

    • 81
    • 85

    Chance Thunderstorms

    • 79
    • 85

    Rain Showers Likely

    • 79
    • 85

    Rain Showers Likely

Today 28 May Monroe Middle Keys

Partly sunny with a chance of Showers and Thunderstorms. Highs in the upper 80s. Southeast Winds near 10 Mph, decreasing to 5 to 10 Mph. Chance of rain 40 percent.

Tonight 28 May Monroe Middle Keys

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Lows near 80. Southeast to south Winds 5 to 10 Mph. Chance of rain 40 percent.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Long Key Temperature Statistics

May Temperature

The Florida Keys - Marathon International Airport (15.5 miles)

  • Lowest 4 May, 2026

    72.6 °F
  • Average May

    82.2 °F
  • Highest 8 May, 2026

    87.7 °F

Climate (2021–Present)

The Florida Keys - Marathon International Airport (15.5 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2021–2026

    75.3 °F
  • Average 2021–2026

    80 °F
  • Average High 2021–2026

    85 °F
Get WillyWeather+ to remove ads