Extreme levels of heat and humidity are forecast to spread across the country over the next two weeks, blanketing the Southwest, Midwest, and East Coast with high temperatures beginning this June 19 ...

Most of us are familiar with the heat index, the measure of how hot it feels to our body using the combination of air temperature and humidity. However, the heat index does not account for other ...

LONDON (Reuters) - A dangerous combination of heat and humidity is sweeping the Gulf region this week, hitting cities from Dubai to Doha. Dubai, for example, is forecast to see air temperatures hover ...

Sports teams, firms with outdoor workers and the U.S. military all use wet bulb globe temperature to help decide if outdoor activity is safe. Here, a U.S. Navy corpsman checks a device that measure ...