The Red Lion Inn (formerly the Holiday Inn Express) is the closest hotel to Skydive Perris and has a skydiver rate. This hotel often books up completely, and October is a busy month with multiple events at the dropzone, so reserve early.
Skydive Perris has a bunkhouse with 26 beds available for $15 per bed per night. There is camping available for free, though the place to pitch tents is somewhat removed from the main areas of the dropzone.
More information on local and dropzone accommodation can be found at the Skydive Perris website travel page.