The National Weather Service issued an extreme heat warning for a second day as the heat index surpasses 100. See how hot it will get in Delaware.

Most of Delaware is under an extreme heat warning as a heat wave brings the heat index to above 100 degrees. See when ...

Basically, when the body sweats, the perspiration evaporates, cooling the body. When the humidity is high, the sweat doesn't ...

In major cities such as Washington, D.C., Baltimore, Philadelphia and New York, the temperature was forecast to approach 100 ...

When it feels too hot out, the National Weather Service issues a triage of heat related products to inform members of the ...

“Prior to 8:00 A.M. on the date of the scheduled disconnection, a National Weather Service Heat Advisory or Excessive Heat ...

Georgia has some rules about whether your power can be cut off in weather like this, when air conditioning is a life-or-death matter.

After one of the warmest June mornings in records dating to 1872, Philadelphia may experience its first 100-degree reading in ...

The National Weather Service has issued an extreme heat warning for Lower Hudson Valley, with a heat index of up to 107 for second consecutive day.

More than 160 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...