St. Clair’s Halloween Nights, presented by the St. Clair Chamber of Commerce, will bring fun for all ages throughout the month of October. He said the window painting event will be adding bounce houses and kids games this year. The Cargill Trunk or Treat event is free and will include costumes, candy and trucks full of treats. At the event, there will be Halloween activities for toddlers hosted by the St. Clair Recreation Department. “But it’s definitely scary compared to the Trick or Treat Trail.”He said planning for St. Clair’s Halloween Nights takes a year.