A heat wave that starts Saturday is expected to send daytime highs soaring into the 90s through next Tuesday. For some of us, ...

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

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

A heat wave is currently affecting about 160 million people, according to the National Weather Service. Here's which states ...

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

Several states are expecting extreme heat, with the heat index, or feels-like temperature, surging past 100 degrees.

Sweltering 100-degree temperatures could be headed to central South Carolina early next week, according to the National ...

A heat dome has begun to blanket the US and is expected to bake more than 30 states with high temperatures that could shatter ...

Stay safe in this sweltering heat, New Jersey. Here's the latest today, from heat maps, advisories and warnings, to when we'll see relief.

Unless society stops pumping more greenhouse gases in the air, “we can expect multiple factors to worsen summer extremes,” a ...