While wind chill is not a true temperature, it allows experts to understand how heat is lost because of the wind.

Thursday started off brutally cold in Chicago, with wind chills dipping below zero, but what exactly does that mean and how is it calculated?

Wind chill approximates how cold it feels because the rate of heat loss corresponds with skin temperature, and skin temperature is what our nerves sense.

Louisville can expect single digit temperatures with an average wind chill of -6 degrees. What does wind chill mean and how is it calculated?