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 ...

The iTHX-SD transmitter lets users view virtual charts and record temperature, relative humidity and dew point over an Ethernet network or the Internet with no special software—just a Web browser. The ...

Michigan's heat wave this week will feel even warmer because of high humidity. Here's how the heat index works.

The heat index is a measurement that considers both air temperature and humidity to determine how hot it actually feels to the human body.

The heat and humidity will continue to build across Northeast Florida and Southeast Georgia this week. In fact, temperatures ...