Fair and 83 F at Key West International Airport, FL Posted Tuesday, May 14th, 2024 4:48am Winds are from the Southeast at 17.3 gusting to 29.9 MPH (15 gusting to 26 KT). The pressure is 1012.5 mb and the humidity is 79%. The heat index is 91. Last Updated on May 14 2024, 3:53 am EDT.