Over the next two weeks, extreme levels of humidity are forecast to hit around 40 states, with the first wave of very muggy weather building in central and eastern states through Thursday. Across the ...

More than 120 million people across the United States just experienced a near-record humid summer. See how humidity patterns are changing in your region.

The Chicago area is bracing for extreme heat and humidity in the coming days, and experts said it could become more common with changing weather patterns. A Chicago doctor said extreme humidity ...

Climate change is causing the weather to get more erratic across the U.S. Rain storms that used to happen once in a lifetime now occur every few years. Heat waves are hotter, and last longer.

A heat advisory is in effect in Boston and several other Massachusetts communities through 7 p.m. on July 17. The National Weather Service warned of "dangerous heat and humidity" with heat indices ...