If you are living in one of many areas of the U.S. currently experiencing a heat wave, your outdoor thermometer may say it's ...

Humidity doesn’t just make you feel sticky and uncomfortable – it also creates extra dangerous conditions on hot days.

A public health researcher explains the signs someone is developing heat exhaustion or heat stroke, and what to do.

Heat-related illnesses can quickly progress to life-threatening heat stroke, so it is important to recognize the warning ...

A new California law focused on player safety may lead to delays, cancellations of high school sports early in the season ...

Unlike just a hot day, a heat stress day factors in both temperature and how much moisture is in the air, because when humidity is high, sweat doesn’t evaporate as easily and the body struggles ...

Heat stress: More than just temperature Beyond the heat index, meteorologists also track heat stress, or Wet Bulb Globe Temperature (WBGT). This index combines temperature, humidity, wind, sun angle, ...

Thursday will be a Weather Impact Alert Day, and for good reason. Conditions will be oppressively hot and humid statewide, with heat indices peaking between 105° and 110°. The most dangerous window ...

The heat index, or apparent temperature, combines air temperature and humidity to indicate how hot it feels to the body. High humidity slows sweating, the body's natural cooling system, making ...