2026-2027
Official
Updated 2026-08-09

Adlai E. Stevenson High School District 125 Calendar 2026-2027

Complete holiday schedule and key dates for Adlai E. Stevenson High School District 125 for the 2026-2027 academic year. Official district website

First Day Aug 13, 2026
Last Day May 26, 2027
Thanksgiving Break Nov 25-27
Winter Break Dec 21-Jan 5
Spring Break Mar 22-26

Key Dates

Event Date(s) Status
First Day of School August 13, 2026 (Thu) School Opens
Labor Day September 7, 2026 (Mon) No School
Indigenous People's Day October 12, 2026 (Mon) No School
Election Day November 3, 2026 (Tue) No School
Thanksgiving Break November 25, 2026 - November 27, 2026 No School
Winter Break December 21, 2026 - January 5, 2027 No School
Martin Luther King Jr. Day January 18, 2027 (Mon) No School
Presidents Day February 15, 2027 (Mon) No School
Casimir Pulaski Day March 1, 2027 (Mon) No School
Spring Break March 22, 2027 - March 26, 2027 No School
Last Day of School May 26, 2027 (Wed) School Closes
Memorial Day May 31, 2027 (Mon) No School
Juneteenth National Freedom Day June 18, 2027 (Fri) No School
Juneteenth National Freedom Day June 19, 2027 (Sat) No School

Spot an error? Help us keep this calendar accurate.

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 5, 2027Districtwide no-school: Dec 21, 2026–Jan 5, 2027 · Adjacent weekend: Dec 19–20, 2026 18 days
Casimir Pulaski Day Window Feb 26–Mar 1, 2027Districtwide no-school: Feb 26, 2027; Mar 1, 2027 · Adjacent weekend: Feb 27–28, 2027 4 days
Spring Break Window Mar 20–28, 2027Districtwide no-school: Mar 22–26, 2027 · Adjacent weekend: Mar 20–21, 2027; Mar 27–28, 2027 9 days

Other Important Dates

EventDate(s)
Classes Resume - Start of Second SemesterJanuary 6, 2027 (Wed)
Start of Second SemesterJanuary 6, 2027 (Wed)
GraduationMay 28, 2027 (Fri)

Stevenson District 125 Calendar 2026-2027 www.illinoisschoolcalendar.com

View the full 2026-2027 school year by month.

Monthly calendar12 months
School Day
Weekend
Holiday (No School)
School Break
First / Last Day

About Adlai E. Stevenson High School District 125

District 125 begins where six independent elementary systems end. Aptakisic-Tripp District 102, Kildeer Countryside District 96, Lincolnshire-Prairie View District 103, Diamond Lake District 76, Fremont District 79, and Hawthorn District 73 each manage their own schools through eighth grade. Students who live inside the District 125 boundary then come together at a single school, Adlai E. Stevenson High School. The elementary district shown on a family’s earlier records does not establish high-school eligibility; residence within District 125 controls admission.

That one-school structure creates an unusually large point of convergence in ninth grade. Students arrive from different middle schools with different schedules, course sequences, extracurricular traditions, and peer groups. Stevenson’s Freshman Mentor Program is built around that transition: upperclass mentors work with small freshman advisory groups throughout the year, helping students learn the campus and form connections across former feeder-district lines. The program runs throughout the school year as part of Stevenson’s operating structure, carrying the transition work well beyond the first days of orientation.

For families, the district distinction matters in everyday planning. A child may spend K–8 in one district and grades 9–12 in another, with separate boards, registration systems, transportation rules, and calendars. Private-school students living inside the District 125 boundary may also be eligible to enroll at Stevenson, but must document residency. The district’s identity is concentrated in one high school, while the routes into that school remain administratively separate until eighth-grade graduation.

Compared With Related Districts

Selected highlights from this district calendar and related district calendar pages.

Illinois Spring Break split March 22, 2027 - March 26, 2027

Stevenson District 125 uses this Spring Break week, while School District 308 (March 22, 2027 - March 29, 2027) and Triad CUSD 2 (March 26, 2027 - April 2, 2027) use different windows in the related calendar set.

Earlier last day May 26, 2027

Stevenson District 125 ends on this date; Springfield District 186 (May 28, 2027) and Sycamore District 427 (May 27, 2027) close on different 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 Stevenson District 125.

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About This Calendar

Data Source: Stevenson 2026-27 Academic Calendar How we verify dates

Disclaimer: This website is not affiliated with Adlai E. Stevenson High School District 125, any state education authority, or any official district body. While we strive for accuracy, always verify important dates with the official district website.