Corn sweat certainly contributes to Ohio's humidity, but it isn't the primary source, according to NWS meteorologist Matthew Campbell. Humidity and heat coming to the Ohio Valley this week are due to "large-scale weather patterns," according to Campbell.

It is “corn sweat” season. The biggest U.S. crop does influence our weather here in Michigan and across the Midwest. All plants drink up moisture from the soil and then breathe some of it out in a process called transpiration. The transpiration puts water vapor in the air and increases the humidity.

If you've ever wondered why it may feel so tropical in the Ohio Valley region during the summer, the answer might not be what you'd expect.

With that title comes an increased dew point thanks to a process called evapotranspiration , or corn sweat. The crop naturally pulls water from the ground through its roots, uses it for essential physiologic functions and releases moisture through its leaves as water vapor.

While the humidity is low in Central Ohio today, you're probably seeing stories on your news feed about corn sweat impacting the Midwest.