See all Attractions in Longmont Longmont for: Adventure, Food And Dining, Art And Culture, Nightlife, Spa, History, First Timers, Family, Romance, Shopping Longmont Museum 400 Quail Road, Longmont, CO 80501 Phone: Local: 303-651-8374 About Admission to the permanent exhibits is free. There may be a charge for special exhibitions. Hours: Monday-Saturday: 9-5, Sunday: 1-5. Add to Wish List