Mostly Cloudy and 80 F at Key West International Airport, FL Posted Saturday, May 4th, 2024 7:44am Winds are from the East at 15.0 gusting to 27.6 MPH (13 gusting to 24 KT). The pressure is 1015.4 mb and the humidity is 71%. The heat index is 83. Last Updated on May 4 2024, 7:53 am EDT.