For the 2026–2027 school year, Chicago Heights School District 170 publishes its official academic calendar for Illinois. Classes begin Aug 19 and end May 27. All dates listed below are sourced from the district's official publications. Verify with Chicago Heights School District 170 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Chicago Heights School District 170. Click any page to open the full-size image.
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School Calendar
Interactive Calendar
Chicago Heights School District 170's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
- Independence Day ObservedJul 3, 2026Event
- Institute Days - Students not in AttendanceAug 17 — Aug 18Event
- First Day of K-8 Student AttendanceAug 19, 2026School Opens
- Quarter 1Aug 19 — Oct 9Event
- No School - Holiday - Labor DaySep 7, 2026No School
- Early Dismissal 10:40 CHMS, 11:00 Feeder SchoolsSep 22, 2026Event
- Student-Led Parent-Teacher Conferences 3:00-6:05 PM - Full Student Attendance DayOct 8, 2026Teacher Day
- Student-Led Parent-Teacher Conferences 8:40-11:40 AM - No Student Attendance DayOct 9, 2026Teacher Day
- No School - Holiday - Indiginous PeopleOct 12, 2026No School
- Quarter 2Oct 13 — Dec 18Event
- No School - Institute DayOct 28, 2026No School
- No School - Election DayNov 3, 2026No School
- Early Release 1:20 CHMS, 1:40 Feeder SchoolsNov 24, 2026Early Release
- No School - Holiday - Thanksgiving Break - Classes resume on November 30, 2025Nov 25 — Nov 27No School
- Early Release 1:20 CHMS, 1:40 Feeder SchoolsDec 18, 2026Early Release
- No School - Holiday - Winter Break - Classes resume on January 4, 2027Dec 21 — Jan 1No School
- Quarter 3Jan 4 — Mar 12Event
- No School - Holiday - Birthday of Martin Luther King, Jr.Jan 18, 2027No School
- Early Dismissal 10:40 CHMS, 11:00 Feeder SchoolsJan 28, 2027Event
- Student-Led Parent-Teacher Conferences 3:00-6:05 PM - Full Student Attendance DayFeb 11, 2027Teacher Day
- Student-Led Parent-Teacher Conferences 8:40-11:40 AM - No Student Attendance DayFeb 12, 2027Teacher Day
- No School - Holiday - President's Day (Washington's Birthday)Feb 15, 2027No School
- No School - Institute DayFeb 23, 2027No School
- Quarter 4Mar 15 — May 27Event
- Early Release 1:20 CHMS, 1:40 Feeder SchoolsMar 25, 2027Early Release
- No School - Spring Break - Classes resume on April 5, 2027Mar 26 — Apr 4No School
- Early Dismissal 10:40 CHMS, 11:00 Feeder SchoolsApr 14, 2027Event
- Early Dismissal 10:40 CHMS, 11:00 Feeder SchoolsMay 21, 2027Event
- CHMS GraduationMay 25, 2027Event
- Last Day of Student Attendance - Early Release 1:20 CHMS, 1:40 Feeder SchoolsMay 27, 2027School Closes
- Emergency Days if neededMay 28 — Jun 4Event
- Holiday - Memorial DayMay 31, 2027No School
- Juneteenth ObservedJun 18, 2027Event
About the District
School Information
Details and contact information for Chicago Heights School District 170.
Sources and Checks
Where these dates come from
How the 2026–2027 Chicago Heights School District 170 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Chicago Heights School District 170 published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against educounty.net.
- ✓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 Chicago Heights School District 170 before booking around a date.
Common Questions
Frequently Asked Questions
Chicago Heights School District 170 Calendar 2026–2027 — important dates and answers.
The first day of K-8 student attendance in Chicago Heights School District 170 is August 19, 2026.
The school calendar lists Spring Break from March 26 through April 4, 2026, with classes resuming on April 5, 2027.
The calendar does not list a separate Christmas Break. Winter Break runs from December 21, 2026 through January 1, 2027, with classes resuming January 4, 2027.
Winter Break in Chicago Heights School District 170 is December 21, 2026 through January 1, 2027. Classes resume on January 4, 2027.
Thanksgiving Break is November 25-27, 2026.
The last day of student attendance is May 27, 2027, with an early release at 1:20 PM for CHMS and 1:40 PM for feeder schools.
There is no school on September 7, 2026 for the Labor Day holiday.
Institute Days are August 17-18, 2026, and students are not in attendance.
Student-led Parent-Teacher Conferences are October 8-9, 2026 and February 11-12, 2027. October 8 and February 11 are full student attendance days, while October 9 and February 12 are no-student-attendance days.
No. There is no school on November 3, 2026 for Election Day.
There is no school on January 18, 2027 in observance of the Birthday of Martin Luther King, Jr.
There is no school on February 15, 2027 for President's Day (Washington's Birthday).
CHMS Graduation is scheduled for May 25, 2027.
Memorial Day is May 31, 2027.
Juneteenth is observed on June 18, 2027.
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