For the 2026–2027 school year, the district serves 6,500 students across 4 schools in Illinois. Classes begin August 12, 2026 and end May 27, 2027, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with Community High School District 155 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Community High School District 155. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Community High School District 155's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Community High School District 155 D155.
Sources and Checks
Where these dates come from
How the 2026–2027 Community High School District 155 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Community High School District 155 published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against d155.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 Community High School District 155 before booking around a date.
Common Questions
Frequently Asked Questions
Community High School District 155 Calendar 2026–2027 — important dates and answers.
The first day of school is August 12, 2026.
Spring break is from March 29 to April 2, 2027.
Christmas break falls during the winter break from December 21, 2026 to January 1, 2027.
Winter break runs from December 21, 2026 through January 1, 2027.
Thanksgiving break is from November 25 to November 27, 2026.
The last day of school is May 20, 2027 if no emergency days are used, or May 27, 2027 if all emergency days are used.
Labor Day (no school) is on September 7, 2026.
Martin Luther King Jr. Day (no school) is on January 18, 2027.
Presidents’ Day (no school) is on February 15, 2027.
Final exams are scheduled for December 17–18, 2026 and May 19–20, 2027.
Graduation is scheduled for May 15, 2027.
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Recently Updated Calendars
Other Illinois school district calendars — recently added or updated.