Mount Washington Observatory is a non-profit scientific institution located on the summit of Mount Washington in New Hampshire, USA. Established in 1932, it is known for its extreme weather conditions and climate research. The observatory operates a weather station that has recorded some of the most severe weather in the world, including a wind speed of 231 mph (372 km/h) in 1934, which held the world record for over 60 years.

The facility conducts ongoing atmospheric and ecological research, providing valuable data on climate change, weather patterns, and high-altitude ecosystems. It also serves as an educational center, offering guided tours, educational programs, and overnight experiences for visitors interested in meteorology and the unique alpine environment of Mount Washington.