Key West - South Side Weather Forecast

    • 81
    • 92

    Slight Chance Thunderstorms

    • 81
    • 91

    Slight Chance Thunderstorms

    • 79
    • 91

    Mostly Cloudy

    • 79
    • 90

    Mostly Cloudy

    • 79
    • 89

    Partly Sunny

    • 80
    • 90

    Partly Sunny

Today 10 May Monroe Lower Keys

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. Southeast Winds 5 to 10 Mph. Chance of rain 10 percent.

Tonight 10 May Monroe Lower Keys

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the lower 80s. Southeast Winds near 10 Mph. Chance of rain 10 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Key West - South Side Temperature Statistics

May Temperature

Key West International Airport (1.9 miles)

  • Lowest 6 May, 2026

    76.6 °F

  • Average May

    82.8 °F

  • Highest 5 May, 2026

    90.6 °F

Climate (2021–Present)

Key West International Airport (1.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    75.5 °F

  • Average 2021–2026

    79.6 °F

  • Average High 2021–2026

    83.9 °F
Get WillyWeather+ to remove ads