DuPage High School District 88 Calendar 2026-2027
Complete holiday schedule and key dates for DuPage High School District 88 for the 2026-2027 academic year. Official district website
School Year Timeline
Key Dates
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | August 17, 2026 (Mon) | School Opens |
| Thanksgiving Break | November 25, 2026 - November 27, 2026 | No School |
| Winter Break | December 21, 2026 - January 1, 2027 | No School |
| Spring Break | March 29, 2027 - April 2, 2027 | No School |
| Last Day of School | May 28, 2027 (Fri) | School Closes |
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Extended Time Off
| Window | Date(s) | Length |
|---|---|---|
| Thanksgiving Break Window | Nov 25–29, 2026Districtwide no-school: Nov 25–27, 2026 · Adjacent weekend: Nov 28–29, 2026 | 5 days |
| Winter Break Window | Dec 19, 2026–Jan 3, 2027Districtwide no-school: Dec 21, 2026–Jan 1, 2027 · Adjacent weekend: Dec 19–20, 2026; Jan 2–3, 2027 | 16 days |
| Spring Break Window | Mar 27–Apr 4, 2027Districtwide no-school: Mar 29–Apr 2, 2027 · Adjacent weekend: Mar 27–28, 2027; Apr 3–4, 2027 | 9 days |
DuPage HSD 88 Calendar 2026-2027 www.illinoisschoolcalendar.com
View the full 2026-2027 school year by month.
Monthly calendar12 months
About DuPage High School District 88
DuPage High School District 88 overlays two high-school zones on three associate elementary districts. Addison School District 4 lies on the Addison Trail side of the official map, while School District 45 and Salt Creek School District 48 occupy the Willowbrook side. The district still verifies the exact property because the legal high-school boundary, rather than an elementary-district name by itself, controls enrollment near the edges.
Addison Trail and Willowbrook are parallel grades 9–12 campuses. Districts 4, 45, 48, and 88 maintain a Learning Compact and meet jointly to coordinate curriculum, student services, and the transition into high school. Ninth grade is a governance handoff among separate boards as well as a move into one of the two District 88 campuses; the compact connects the systems without merging their boundaries.
Compared With Related Districts
Selected highlights from this district calendar and related district calendar pages.
DuPage HSD 88 uses this Spring Break week, while District 99 (March 26, 2027 - April 2, 2027) and East St. Louis District 189 (April 19, 2027 - April 23, 2027) use different windows in the related calendar set.
DuPage HSD 88 starts on this date; Dunlap CUSD #323 (August 12, 2026) and East Aurora District 131 (August 19, 2026) use different first-day dates in the related calendar set.
Compare key dates with nearby districts
Choose one or two related districts to line up major planning dates with DuPage HSD 88.
Related Links
About This Calendar
Data Source: DuPage High School District 88 2026-2027 School Calendar How we verify dates
Disclaimer: This website is not affiliated with DuPage High School District 88, any state education authority, or any official district body. While we strive for accuracy, always verify important dates with the official district website.