It will be the hottest day of the year in most of Massachusetts Thursday and the first time Boston has hit 90 in 2025.

Several days of record-breaking heat are expected in Denver, and the National Weather Service has issued a heat advisory that ...

The National Weather Service issued a heat advisory at 2:52 p.m. on Wednesday valid for Thursday between 11 a.m. and 8 p.m.

Like water ice and mosquitoes, heat advisories are staples of Philadelphia summers. But usually the National Weather Service ...

On Wednesday at 7:55 a.m. the National Weather Service issued a heat advisory valid for Thursday between 11 a.m. and 8 p.m.

Yesterday we brought the humidity, today we bring in the heat. Once the low clouds and fog start to peel away, temps take off ...

Extreme heat warnings are in effect across Arizona and Nevada, raising concerns for children's health. Heat advisories span ...

Massachusetts is in for a dangerous weather combo Thursday with triple-digit heat, severe storms and a chance of tornadoes in ...

Southern California remains under a Heat Advisory through 8 PM Wednesday, June 18, with dangerously high temperatures ...

Take action when you see symptoms of heat exhaustion and heat stroke.

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