What is the best time to visit Montana in the fallThe optimal time to visit Montana for fall foliage varies depending on the region. Northwest MontanaNorthwest Montana offers many opportunities to witness the splendor of fall foliage and the shoulder season is also a great time for a road trip. The Bison Range and the Mission Valley are also must-see destinations for fall foliage enthusiasts. The Hi-Line, a stretch of US Highway 2, is another excellent option for fall foliage viewing. So you’ll have the best of both worlds: A secluded retreat and proximity to some of the best places in Northwest Montana for fall foliage.