Join us on the summit of Mount Washington this October 15, 2024 for our Founding Day. We’ll have free tours and an Open House at our world famous mountaintop weather station in the Sherman Adams Visitor Center, at Mount Washington State Park from 10:00 a.m. to 3:00 p.m.! Mount Washington Observatory staff and volunteers will be available for a behind-the-scenes look at the weather station, where visitors will also have the opportunity to talk to a weather observer, climb the instrument tower, and learn about the history of the organization with MWOBS curator Dr. Peter Crane. (Light refreshments will be served, no reservation required. Visitors will need to ride the Mount Washington Cog Railway or drive the Mt. Washington Auto Road to reach the summit– see associated rates for transport. Or hike! Keep an eye on our summit forecast.)