For the 2026–2027 school year, Sunnybrook SD 171 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 Sunnybrook SD 171 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Sunnybrook SD 171. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Sunnybrook SD 171's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
- HolidayJul 4, 2026No School
- Parent/Teacher InstituteAug 17 — Aug 18Teacher Day
- First Day of SchoolAug 19, 2026School Opens
- HolidaySep 7, 2026No School
- Half Attendance DaySep 16, 2026Event
- HolidayOct 12, 2026No School
- Half Attendance DayOct 21, 2026Event
- Full Day Parent Teacher ConferenceNov 23, 2026Teacher Day
- Not in AttendanceNov 24 — Nov 25Event
- HolidayNov 26, 2026No School
- Not in AttendanceNov 27, 2026Event
- Not in AttendanceDec 21 — Dec 24Event
- HolidayDec 25, 2026No School
- Not in AttendanceDec 28 — Dec 31Event
- HolidayJan 1, 2027No School
- Parent/Teacher InstituteJan 4, 2027Teacher Day
- HolidayJan 18, 2027No School
- Half Attendance DayJan 28 — Jan 29Event
- Half Attendance DayFeb 3, 2027Event
- Not in AttendanceFeb 15, 2027Event
- Half Attendance DayMar 17, 2027Event
- Not in AttendanceMar 26, 2027Event
- Not in AttendanceMar 29 — Apr 2Event
- Parent/Teacher InstituteMay 14, 2027Teacher Day
- Last Day of SchoolMay 27, 2027School Closes
- Proposed Emergency DayMay 28, 2027Event
- HolidayMay 31, 2027No School
- Proposed Emergency DaysJun 1 — Jun 4Event
- HolidayJun 19, 2027No School
About the District
School Information
Details and contact information for Sunnybrook SD 171.
Sources and Checks
Where these dates come from
How the 2026–2027 Sunnybrook SD 171 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Sunnybrook SD 171 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 Sunnybrook SD 171 before booking around a date.
Common Questions
Frequently Asked Questions
Sunnybrook SD 171 Calendar 2026–2027 — important dates and answers.
The first day of school in Sunnybrook SD 171 is August 19, 2026.
Spring Break in Sunnybrook SD 171 is from March 26 through April 2, 2027.
Christmas Break in Sunnybrook SD 171 begins December 21, 2026 and continues through January 1, 2027. School resumes after the January 4, 2027 Parent/Teacher Institute day.
Winter Break in Sunnybrook SD 171 runs from December 21, 2026 through January 1, 2027.
Thanksgiving Break includes November 24-27, 2026. November 26, 2026 is marked as a holiday, and November 24, 25, and 27 are non-attendance days.
The last regular attendance day of school in Sunnybrook SD 171 is May 27, 2027.
Parent/Teacher Institute days are August 17-18, 2026, January 4, 2027, and May 14, 2027.
The full-day Parent Teacher Conference is scheduled for November 23, 2026.
Half attendance days are September 16, 2026, October 21, 2026, January 28-29, 2027, February 3, 2027, and March 17, 2027.
Martin Luther King Jr. Day is observed as a school holiday on January 18, 2027.
February 15, 2027 is scheduled as a non-attendance day.
Proposed emergency days are May 28, 2027 and June 1-4, 2027.
Explore More
Recently Updated Calendars
Other Illinois school district calendars — recently added or updated.