2025年2月14日 · Mount Washington Observatory is a private, nonprofit, member-supported institution with a mission to advance understanding of the natural systems that create Earth’s weather and climate.

Mount Washington Observatory is a private, nonprofit, member-supported institution with a mission to advance understanding of the natural systems that create Earth’s weather and climate.

Mount Washington Observatory is a private, nonprofit, member-supported institution with a mission to advance understanding of the natural systems that create Earth’s weather and climate.

Our weather station and Extreme Mount Washington Museum are located in Mount Washington State Park in the Sherman Adams Visitor Center. Between mid-May to mid-October, you can visit the summit of New England’s highest peak via car, train, or by foot.

View our live streaming and still-image weather webcams located on Mount Washington in New Hampshire and surrounding mountains. Observatory Deck Webcam A view of the Sherman Adams observation deck at Mount Washington State Park

Raw daily weather data (temperature, precipitation, wind, sunshine, sky cover, and weather occurrences) for each month of the year from 2005 to the present, as measured at the Mount Washington Observatory summit weather station.

Whether you are looking forward to vibrant foliage or watching the summit of Mount Washington become capped with snow, happy fall from the Mount Washington Observatory!

For the past 20 years, Mike and Sue Zlogar have dedicated countless volunteer hours to Mount Washington Observatory (MWOBS). Their contributions, from repair projects to cooking family-style meals, have touched every corner of summit life.

Mount Washington Observatory is a private, nonprofit, member-supported institution with a mission to advance understanding of the natural systems that create Earth’s weather and climate.

Mount Washington Observatory is a private, nonprofit, member-supported institution with a mission to advance understanding of the natural systems that create Earth’s weather and climate.