 With AutoPen, using Debit or Bank account, plus taxes and fees. 45% off two lines versus AT&T Starter and Verizon Welcome. Plan benefits vary. See details. Summer is back, and so is the 32nd Annual First Interstate Bank Venn Summer Festival in downtown Venn, July 12th through the 14th. Featuring three days of free live music. Explore Venn's largest art festival with sculpture, painting, woodworking, glass, and handmade jewelry. Meet the actual artists and crafters from around the West.