Get ready for the first heat wave of the summer, New Jersey. Here's what to expect, heat index value, timing and more.

An 'extreme heat watch' is in effect as the heat index is expected to skyrocket. Here's timing, updated heat index values, ...

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.

The first big heat wave of 2025 has arrived, coinciding with the official start of summer. More than 40 million people in the ...

The National Weather Service called the forecast for above-average temperatures "the first significant heat wave this season.

Millions and millions of Americans are being warned of "dangerous" heat in more than a dozen states as the summer 2025 season ...

The first heat wave of summer could bring punishing humidity and triple-digit temperatures to many states east of the Rocky ...

The first day of summer is also #ShowYourStripes Day, a time for meteorologists to draw attention to climate change using red and blue stripes.

Friday is the summer solstice and much of the U.S. is going to be baking in serious heat starting this weekend with a heat dome expected to keep temperatures soaring. Stephanie Sy reports on what you ...

Tens of millions of people in the U.S. are facing heat warnings, which can increased the risk of heat-related illness.

The start of astronomical summer also brings the first major and dangerous U.S. heatwave of 2025. Here's what you need to ...

Heat dome will cause dangerously high temperatures in many places across the country this weekend, especially the Midwest and ...