Typical weather in mid-September is pretty ideal but can get pretty hot. But, then again it’s in the mountains and who knows so maybe bring a light jacket or sweater. Wear wedding attire but a little on the casual side and comfortable shoes.
Going up the canyon directly to the shuttle it will take an hour and 15 min. If you are stopping at The Mish, it will take about 30 minutes to the Mish and about 45 to the shuttle stop. Once on the shuttle it is 2 minutes away!
Drink lots of water and wear sunblock while in Fort Collins and especially when you go even higher, the sun is hotter and need more water!