As the official start of summer arrives, the United States is being hit by a dangerous heat wave, making this the first ...

A multiday heat wave is bringing high temperatures and health risks from the Midwest to the Northeast, prompting warnings and emergency measures.

A rare and dangerous heatwave is sweeping across the United States, pushing temperatures into the triple digits across major ...

Cities across the eastern and central United States are bracing for more days of extreme temperatures as a unusual June heat ...

Extreme humidity and heat will affect around 265 million people across the country this week. Maps show where and when to ...

Over 140 million Americans will be under the highest-level extreme heat alerts by Sunday during a wave of above-average ...

A dangerous, record-breaking heat wave will spread over the eastern United States and is expected to last several days.

A significant and intense heat wave is set to engulf the central and eastern United States, delivering the highest ...

High temperatures across the Plains, Midwest, Mid-Atlantic and Northeast are expected to hit at least 15 degrees above normal ...

Much of the country is facing brutal, potentially deadly heat. The reasons for such extreme events are not complicated.

Heat is the top cause of weather-related deaths in the United States, according to the Centers for Disease Control. As the ...

It won’t take long for the heat levels to ramp-up on Saturday. The hottest weather will be over West Alabama, where heat ...