Hi there, I'm WT 111, chief meteorologist Chris Vickers. So, what's the deal with the corn sweat? That's on the move across much of the Midwest and Great Lakes. Well, two points in the upper seventies and near 80 degrees here in late August offering some sweltering heat and humidity. A lot of this moisture is actually coming from the mature corn crop across the corn belt region. Let's put this in motion in a Tuesday and Wednesday. Our models are indicating very muggy conditions to persist across the Midwest and Great Lakes region. Part of this due to the moisture from that corn crop being released into the atmosphere leading to oppressive heat and humidity. So why so humid? It's the corn sweats. One acre of corn can release 3000 gallons of water per day. The roots draw that moisture from the ground and release it into the atmosphere through a process called a Vapo transpiration that's been leading to extreme heated X values over 100 degrees.