- Boulder, CO; Sept 15 - 17; free
While it may not quite feel like fall yet in Boulder in September, this festival gets you into the spirit of the season. Part Oktoberfest, part harvest festival, the event features live music from nine bands and enough food to go around. Classic beers and brats combine with handmade artisan goods for a unique celebration of the new season. Stop by the popular Firefly Handmade Market to pick up jewelry, ceramics, artisanal food, and more from local makers.