The white and/or fall creek are good bets. I assume you don't have access to a boat. For the white there is good shore access for wading at 116th st on northeast side of town. May also be ok at 38th st but I have not done that. The white is very good for smallies. For fall creek there is access and wading at fort ben. Other fall creek sites can be found at [url=http://www.fallcreekindiana.com/:89326]http://www.fallcreekindiana.com/[/url:89326]
Fall creek is good for a mix of smallies, lm and spotted bass.

Good luck! Should be good weather.