A phenomenon called "corn sweat" could exacerbate the impacts of the extreme heat blanketing a large portion of the U.S., according to experts.

Summers in the Midwest always include humidity, making it feel much hotter than the temperature indicates, but what’s to blame? “It’s not the heat that gets you, it’s the humidity”, is a phrase all Midwestern residents have heard before,

Dangerous temperatures will persist across parts of the U.S. through July, and in some areas, there's an unexpected contributor.