A heat dome dries out the ground and air above it, which deters thunderstorms, but means drought can begin or worsen. A heat ...

Another heat dome is moving over Illinois this week as temperatures near the triple digits. Here's what that means and when ...

A heat advisory for Florida's Treasure Coast is in effect from noon through 6 p.m., with heat index values from 109 to 112 ...

Forget about any worries of tropical weather today. Instead pay attention to the heat: temperatures in Jacksonville could ...

The National Weather Service sent out millions of extreme heat warnings, heat watches and heat advisory alerts early Monday ...

How hot will it get as the humidity builds and a heat dome spreads toward the Northeast? What is a heat dome? Here's what to ...

Canadian wildfire smoke lingers in Michigan. Officials issued an air quality advisory in southeast Michigan for July 15.

The National Weather Service has issued extreme heat warnings and heat advisories for regions of Louisiana. What to know about the heat index.

Almost 100 million Americans were under National Weather Service extreme heat warnings, advisories or watches on July 23 as a ...

Growing season is the peak time for corn sweat, especially in the mid to late summer, according to the National Weather ...

Extreme heat is settling in over Ohio, making it feel over 100 degrees. Here's the latest forecast and how you can stay cool.

What is "corn sweat," and how does it contribute to rising heat and humidity in Illinois? See what experts say.