Heat is America's greatest weather-related public health threats, according to the U.S. Centers for Disease and Control, which has created a new tool to highlight the drastically different effects ...

Extreme heat and violent thunderstorms triggered tornado sirens in Michigan Tuesday and knocked out power to hundreds of thousands of homes and businesses. In addition to the heat and severe storms, ...

Intense heat has contributed to record-breaking summer temperatures around the globe in recent years. Here’s the latest forecast, and where it’s expected to be warmer than usual: See temperatures as..