For the 2026–2027 school year, the district serves 9 schools in Illinois. The 2026–2027 academic year includes 180 instructional days. All dates listed below are sourced from the district's official publications. Verify with Addison School District 4 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Addison School District 4. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Addison School District 4's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Addison School District 4 SD.
Sources and Checks
Where these dates come from
How the 2026–2027 Addison School District 4 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Addison School District 4 published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against asd4.org.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Addison School District 4 before booking around a date.
Common Questions
Frequently Asked Questions
Addison School District 4 Calendar 2026–2027 — important dates and answers.
The first day of school for Kindergarten through 8th grade students in Addison School District 4 is August 17, 2026. Early Childhood and Preschool students begin classes on August 19, 2026.
Spring Break is scheduled from March 26 through April 2, 2027. Students return to school after the break.
Christmas Break begins on December 21, 2026 and continues through January 1, 2027.
Winter Break is observed from December 21, 2026, through January 1, 2027. This period includes the district's Christmas and New Year holidays.
Thanksgiving Break is scheduled from November 23 through November 27, 2026.
The tentative last day of school is May 27, 2027, which is also an Early Student Dismissal day and the end of the 3rd Trimester.
Labor Day Holiday will be observed on September 7, 2026, and there will be no school.
There is no school on January 18, 2027, in observance of Martin Luther King Jr. Day.
Presidents' Day is observed on February 15, 2027, and schools will be closed.
Memorial Day will be observed on May 31, 2027, and there will be no school.
The first trimester ends on November 10, 2026.
The second trimester ends on February 24, 2027.
Parent/Teacher Conferences are held on November 17-20, 2026 and February 25, 2027. Early Student Dismissal takes place on the conference afternoons.
Yes. May 28, 2027 is designated as an Emergency Day if needed, with additional emergency days available from June 1-4, 2027 if necessary.
Institute Days are scheduled for August 12, August 13, October 9, 2026, and January 15, 2027. Students do not attend school on these dates.
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Recently Updated Calendars
Other Illinois school district calendars — recently added or updated.