The Oak Creek Community Center has a 'Septembeerfest'.

http://www.occenter.com/events/septbeer.htm

5 miles each way from MKE though. But if the plan is to stay
overnight - there's a Raddison at the corner of Howell and Layton. (Which
is walking distance from Signature) From the money you hand over to
Raddison, Signature, or both, you should be able to get a free ride to
Septembeerfest.

--
Ben
C-172 - N13258 @ 87Y