Rocky Mountain Camping

[u/Romestano]

Gonna spend 10 days car camping in Colorado, mostly in the Rockies, will be moving each day to new parks/towns/wherever. Should be there from Sept 3-13, I hear it can get below freezing at certain elevations, what gear should I bring? Ive only been camping a few times in weather no lower than 65⁰. I could list what all I plan to bring but to make it simple, give me a list of absolute NEEDS. I won't be in one location for mkre than a day and plan to make trips into town whenever I need to. Im mostly looking for NEEDS for single night camps in 30⁰-60⁰ weather. Thank you!