I'm visiting Denver this weekend to see a friend. I've 4 days. I planned to go Rocky Mountains and Badlands National Park / Mt. Rushmore and touch Colorado, Wyoming, Nebraska and South Dakota in this trip (I want to visit all 50 states). However, I did not check weather while booking flights and looks like Rocky Mountains is very cold during this time and so is Badlands. Looks like there is not pretty much to see in Rocky at this time - I'm not sure. Can some one please advise how I could plan this trip ? Since the flight is only $85, I'm also considering to cancel it and plan at a later time during good weather. Appreciate any help. This would be by first solo trip!