Special Weather Statement issued September 25 at 4:26AM EDT by NWS

…High Heat Index Values Continue Across The Area… Heat index values on Sunday reached the upper 80s to lower 90s and these same values will be reached today and Tuesday across northern New York and Vermont. The heat index is a measure of how hot it really feels when relative humidity is factored in with the air temperature…which will be reaching record levels today

Source: National Weather Service Alerts for Vermont