Arlington Heights School District 25 Calendar 2026-2027
Complete holiday schedule and key dates for Arlington Heights School District 25 for the 2026-2027 academic year. Official district website
School Year Timeline
Key Dates
| Event | Date(s) | Status |
|---|---|---|
| First Day of School | August 20, 2026 (Thu) | School Opens |
| Labor Day | September 7, 2026 (Mon) | No School |
| Election Day | November 3, 2026 (Tue) | No School |
| Thanksgiving Day | November 26, 2026 (Thu) | No School |
| Winter Break | December 21, 2026 - January 1, 2027 | No School |
| Martin Luther King Jr. Day | January 18, 2027 (Mon) | No School |
| Election Day | February 23, 2027 (Tue) | No School |
| Spring Break | March 22, 2027 - March 26, 2027 | No School |
| Memorial Day | May 31, 2027 (Mon) | No School |
| Last Day of School | June 3, 2027 (Thu) | School Closes |
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Extended Time Off
| Window | Date(s) | Length |
|---|---|---|
| Student Holiday Window | Oct 22–25, 2026Districtwide no-school: Oct 22–23, 2026 · Adjacent weekend: Oct 24–25, 2026 | 4 days |
| Thanksgiving Day Window | Nov 21–29, 2026Districtwide no-school: Nov 23–27, 2026 · Adjacent weekend: Nov 21–22, 2026; Nov 28–29, 2026 | 9 days |
| Winter Break Window | Dec 19, 2026–Jan 4, 2027Districtwide no-school: Dec 21, 2026–Jan 1, 2027; Jan 4, 2027 · Adjacent weekend: Dec 19–20, 2026; Jan 2–3, 2027 | 17 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
| Event | Date(s) |
|---|---|
| Middle School 1st Quarter Ends | October 21, 2026 (Wed) |
| Middle School Progress Reports | October 30, 2026 (Fri) |
| Elementary 1st Trimester Ends | November 13, 2026 (Fri) |
| Elementary Progress Reports | November 20, 2026 (Fri) |
| Middle School 2nd Quarter Ends | January 15, 2027 (Fri) |
| Middle School Progress Reports | January 22, 2027 (Fri) |
| Elementary 2nd Trimester Ends | February 26, 2027 (Fri) |
| Elementary Progress Reports | March 5, 2027 (Fri) |
| Middle School 3rd Quarter Ends | March 19, 2027 (Fri) |
| Middle School Progress Reports | April 2, 2027 (Fri) |
| Quarter 4 and Trimester 3 End / Progress Reports Issued | June 3, 2027 (Thu) |
Arlington Heights District 25 Calendar 2026-2027 www.illinoisschoolcalendar.com
View the full 2026-2027 school year by month.
Monthly calendar12 months
About Arlington Heights School District 25
Arlington Heights School District 25 provides public education from kindergarten through eighth grade in central Arlington Heights. Seven elementary schools serve grades K–5, after which a separate attendance boundary assigns South or Thomas Middle School for grades 6–8. The district's address-based assignment is necessary because an Arlington Heights mailing address and the nearest campus do not settle either the elementary or middle-school placement.
Kindergarten uses the same neighborhood-school network but offers two daily schedules. Every District 25 elementary school provides full-day kindergarten, and families may instead choose a morning half-day program. Half-day students begin in the same classroom and receive the core reading and mathematics block; science, social studies, art, music, and physical education may occur after they leave. The schedule choice changes the child's daily program while the neighborhood campus and attendance route remain the same.
Eighth grade is the final year governed by District 25. Students commonly continue into Township High School District 214, which applies its own boundary, registration, governance, and calendar. The District 25 elementary-to-middle route does not establish the later high school; District 214 makes that determination from its own residence map.
Compared With Related Districts
Selected highlights from this district calendar and related district calendar pages.
Arlington Heights District 25 starts on this date; Aurora West School District 129 (August 13, 2026) and Ball-Chatham CUSD 5 (August 17, 2026) use different first-day dates in the related calendar set.
Arlington Heights District 25 lists 10 teacher, planning, or student-holiday items beyond the headline break periods.
Arlington Heights District 25 uses this Spring Break week, while Aurora West School District 129 (March 26, 2027 - April 2, 2027) uses different windows in the related calendar set.
Arlington Heights District 25 ends on this date; Aurora West School District 129 (May 21, 2027) and Ball-Chatham CUSD 5 (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 Arlington Heights District 25.
Frequently Asked Questions
The district may use eLearning. If eLearning is unavailable, conditional emergency dates are June 4, May 28, and June 7-9, in that printed order.
Related Links
About This Calendar
Data Source: Arlington Heights School District 25 2026-2027 School Calendar, Board Approved 12/16/2025 How we verify dates
Disclaimer: This website is not affiliated with Arlington Heights School District 25, any state education authority, or any official district body. While we strive for accuracy, always verify important dates with the official district website.