Bear Creek Park is just the other side of C-470/Morrison road....camping, yurts, etc.
For hotels, look in llittelton, golden, lakewood....there is also a boutique hotel in the town of Morrison itself.
Weather-wise, who knows? It could easily be 80 or it could snow....all you gotta do is wait 5 minutes and the weather will change!
Hope you have a good time at the shows!