Saint Viator Lions 2010 Schedule. St. Viator plays in the East Suburban Catholic Conference. St. Viator High School is a Catholic co-educational secondary school in Arlington Heights, Illinois. It serves as a college preparatory school with approximately eleven-hundred students from the mid- and outer-northwest suburbs of Chicago. Part of the Archdiocese of Chicago, the school is run by the Clerics of Saint Viator. The home football stadium is at Forest View Education Center.