Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

The heat wave is coming, Delaware! Here's the latest forecast, from when the 'dangerous' heat is heading in to how hot it'll feel.

With a heat wave causing excessive heat warnings in Delaware, you'll hear a lot about the heat index this week. What to know and how to stay cool.

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

Excessive heat is dangerous. Here's what to know before it strikes South Jersey this summer.

It is going to be punishingly hot in Columbus over the next few days, with highs in the 90s and heat index values over 100.

Heat Index well over 105 expected again SundayMore for You U.S. Strike on Iran Began With a Ruse I build PCs for a living – here are the 6 worst things you’re doing to your PC (and how to fix ...

Recent cool days may make it hard to believe, but a heat wave is coming to NJ soon. Here's the latest temps, heat index. How hot will it get?

With the heat index expected in the triple digits next week, doctors said you need to be careful.

Chicago weather: Heat Advisory for area, Extreme Heat Warning for Cook County, heat index in 100s Chicago pools are now open across the city as temperatures soared into the 90s on Saturday.