East Key - Southern End Weather Forecast
- 78
- 84
Rain Showers
- 79
- 86
Thunderstorms
- 80
- 86
Thunderstorms
- 79
- 87
Thunderstorms
- 80
- 86
Thunderstorms
- 80
- 85
Thunderstorms
Today 13 Sep Monroe Upper Keys
Showers likely with a chance of Thunderstorms. Highs in the upper 80s. North to northeast Winds 5 to 10 Mph. Chance of rain 60 percent.
Tonight 13 Sep Monroe Upper Keys
Partly to mostly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 70s. North to northeast Winds near 5 Mph. Chance of rain 50 percent.
East Key - Southern End Temperature Statistics
September Temperature
The Florida Keys - Marathon International Airport (32.9 miles)
Lowest 4 September, 2025
75 °FAverage September
83.5 °FHighest 11 September, 2025
89.1 °F
Climate (2020–Present)
The Florida Keys - Marathon International Airport (32.9 miles)
Average Low 2020–2025
75.4 °FAverage 2020–2025
80 °FAverage High 2020–2025
85.1 °F