Have fun...I was there this time last year.
Jerome can be a fun, short visit. It is a mining ghost town that has become a tourist place.
Montezuma's Castle is fun, on the way up. Its is a Hopi Indian cave dweller national park. I stayed at the new Courtyard Inn south of Sedona. They had a nice sunset wine bar set up on a patio. I also hiked Devils Bridge, which was awesome. So many good hiking spots, as others have said. Anther great place to visit is the airport. There is a overlook near the airport that is one of the best views in town. Also, breakfast at that airport is pretty darn good. We got a kick out of PussyCat Gelato in town. The Gelato was great but the owner was funny. He's got photos of hot Bond girls and though "pussy" would be a great name for a place but knew it would be too controversial so settled on "pussycat". My two sons and I got a kick out of him. If you are into art, maybe on a rainy day, take in Tlaquepaque.