That forecast comes with the potential for more extreme heat, more humidity, and more risk for heat-related illnesses.

Let’s start with what “normal” or “average” is for July, August and September. July and August average high temperatures are ...

More than 150 million Americans are under the highest level extreme heat alerts during a wave of above-average temperatures.

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

A heat dome will cause temperatures in New York City and the tri-state area to climb into the upper 90s, with high humidity ...

Forecasters with the National Oceanic and Atmospheric Administration are predicting above normal temperatures this summer.

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

Summer vacation is officially underway, and — while it’s been rainy and cool these past few weeks — the months ahead are ...

Summer is just getting started, and millions of people are under heat advisories as a major heat wave spreads across large ...

Florida is staring down a higher-than-normal chance of both above-average temperatures and above-average rainfall through ...

An intense and nearly historic weather pattern is cooking much of America in a dangerous heat dome this week with ...

The first significant heat wave of the summer is taking aim at a huge chunk of the United States later this week, and ...