The best times to visit Blue Mountain Lake are during the summer months, from June to August, and the fall foliage season, typically from late September to mid-October.Summer offers ideal weather for outdoor activities, with average temperatures ranging from the mid-60s to high 70s Fahrenheit. This is superb for enjoying the lake itself, including swimming, boating, and kayaking. Many local attractions, such as the Adirondack Experience museum, have extended hours during this period, and hiking trails are fully accessible.Fall brings cooler temperatures, generally in the 50s and 60s, and spectacular displays of autumn colors. The vibrant reds, oranges, and yellows of the Adirondack forests make this a popular time for scenic drives, photography, and hiking.