Yep, just in time for summer... ewww! There are several options somewhat near IAH, gotta look N and NW... Hooks Airport (DWH) would probably be your best bet. The airport and rental hangars are a bit rough, but it's very usable and T hangars are always available, $325/mo. Lotsa RVs on the field and you might find a hangar apartment to rent, there are several on the field.
To the west there's Weiser (EYQ) and West Houston (IWS); Weiser is a cool little airport with one RV-7A nearing completion (hurry up Daryl!), but hangars can be hard to find. W Houston is a nice field, but a wait list for T hangars and crazy (500/mo!) prices. Farther north is Conroe (CXO), lotsa RVs and hangars but I don't know many specifics there; North Houston (9X1) might work, but it's remote, kinda quiet...