What's the Weather like in September?
Hello!! I leave for my road trip September 1st and wanted to know what the weather typically is like in the places I'm going throughout September. I am trying to figure out what I need to pack. I'll be visiting Cuyahoga National Park in early September then ventured to South Dakota for the Badlands, Custer, Windcave NP. Then going up to Glacier NP and Flathead Lake around the 2nd week of September. Then Yellowstone, Grand Tetons, and Jackson. Then there's the possibility of Boulder, CO. I haven't been to any of these places so I do not know what weather conditions to expect. Any insight on what to pack, gear-wise and clothing-wise is much appreciated from you pros! Thank you in advance!!
Moderator Note: As you were previously told, please keep all questions about this trip in the same thread.