Summer will make a dramatic entrance in the U.S. this week with a heat dome that will bring stifling temperatures and uncomfortable humidity to millions. The heat will be particularly worrisome this ...

The heat is on for western states gripped in the nation's first heat dome of the year. And it's a scorcher, with temperatures reaching into the triple digits for major cities such as Las Vegas, ...

Summer will make a dramatic entrance in the U.S. this week with a heat dome that will bring stifling temperatures and uncomfortable humidity to millions. The heat will be particularly worrisome this ...