Caldwell County’s oldest continual town festival returns with arts, crafts, children’s games, and live entertainment. Stroll the streets of downtown Hudson and take in food and shopping, including jewelry, antiques, and pottery. The entertainment culminates with a live butterfly exhibit, where guests can feed the fluttering insects and learn about their biology and history. » Central Street; Saturday, 9 a.m.-4 p.m.; free; www.ncbutterflyfest.com