Shark Key - Southeast End Weather Forecast
- 80
- 89
Rain Showers Likely
- 80
- 88
Rain Showers Likely
- 81
- 89
Rain Showers Likely
- 81
- 89
Rain Showers Likely
- 80
- 89
Rain Showers Likely
- 80
- 89
Rain Showers Likely
- 81
- 89
Rain Showers Likely
Today 18 Sep Monroe Lower Keys
Showers likely with a chance of Thunderstorms. Highs in the upper 80s. Chance of rain 70 percent.
Tonight 18 Sep Monroe Lower Keys
Mostly cloudy with a chance of Showers and Thunderstorms. Lows near 80. Northeast to east Winds 5 to 10 Mph, becoming east and decreasing to near 5 Mph. Chance of rain 50 percent.
Shark Key - Southeast End Temperature Statistics
September Temperature
Key West Naval Air Station (2.5 miles)
Lowest 5 September, 2026
81 °FAverage September
85.8 °FHighest 12 September, 2026
91.9 °F
Climate (2021–2026)
Key West Naval Air Station (2.5 miles)
Average Low 2021–2026
77.3 °FAverage 2021–2026
81.8 °FAverage High 2021–2026
86.5 °F