The process is known as evapotranspiration, which is how plants, including corn, release water vapor into the atmosphere.

A heat wave will hit Michigan later in the week and the state's corn fields will amplify the extreme temperatures.

With this added moisture in the atmosphere, it can make an already hot day feel even hotter when you factor in the humidity. Forecast models suggest that parts of the Midwest could be more humid than anywhere else in the lower 48 early next week, partially due to corn sweat.