What Is ‘Corn Sweat’ And How Does It Make Heat Waves Worse? | Weather.com
August 8, 2025Updated: August 8, 2025, 12:00 pm EDTPublished: August 8, 2025, 12:00 pm EDT

As temperatures heat up across the Midwest, a phenomenon known as ‘corn sweat’ can make the heat feel even worse. Through a process called evapotranspiration, the leaves of the plant release moisture back into the atmosphere. The more corn, the more ‘sweat’ or moisture - sending humidity and feels-like temperatures soaring locally. Learn more about the phenomenon here.

Loading comments...

Advertisement
Advertisement
Advertisement