GTHSD is a suburban school district with 4 schools. For the 2026-2027 school year, classes begin August 12 and end May 24. The name 'Glenbard' is a portmanteau of Glen Ellyn and Lombard, the two main towns served by the district. The calendar sets aside 5 additional days (May 25–June 1) that may be used as weather makeup days if needed. This calendar includes 3 early-release or half days — useful to know when planning childcare.
Also known as GTHSD.