Meteorologists warn extreme heat and sudden storms could force cancellations or alter plans for communities nationwide.

A widespread heat wave is pushing dangerously high temperatures across large parts of the United States this week.

Eighteen states throughout the U.S. could see extreme heat this week with temperatures soaring past 100 degrees.

A new outlook issued by the Climate Prediction Center (CPC), a branch of the National Weather Service (NWS), has revealed what conditions can be expected across the United States during the winter ...