South Elgin High School competes in the
Upstate Eight Conference. Its mascot is the Storm, named "Striker". South Elgin has more than 70 different activities are offered to students including athletics, fine arts, and various clubs/organizations. Annually, the school hosts "Taste Under The Lights", a family event which includes
football scrimmages,
soccer scrimmages,
cross-country time-trials, marching band performances, cheer and dance performances, and food trucks. Their rival in such sports is
Bartlett High School. The student body is named Storm Nation. The competitive cheerleading team placed 1st in
IHSA State Finals in both the 2019–20 and the 2023-24 seasons. ==Notable alumni==