Mount Washington, elevation 6288 feet, is the highest peak in the Northeastern U.S. Driving up Mt. Washington is one of those experiences I will not forget. It was 80 degrees--nice and sunny at the base, but it became very cold and foggy at the top. No wonder it has the reputation for being "Home of the world's worst weather". With the wind so strong at the summit it felt like late November in early September. I went to the gift shop to buy a sweater.