For the 2026–2027 school year, the district serves 1,200 students across 2 schools in Illinois. Classes begin August 19, 2026 and end June 1, 2027, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with Center Cass School District before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Center Cass School District. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Center Cass School District's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Center Cass School District CCSD 66.
Sources and Checks
Where these dates come from
How the 2026–2027 Center Cass School District calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Center Cass School District published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against ccsd66.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 Center Cass School District before booking around a date.
Common Questions
Frequently Asked Questions
Center Cass School District Calendar 2026–2027 — important dates and answers.
The first day of school for students in the Center Cass School District is August 19, 2026. The day is also designated as a SIP (School Improvement) Day.
Spring Break is scheduled from March 26 through April 2, 2027. Students return to school on April 5, 2027.
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. Classes resume after the Teacher Institute on January 4, 2027.
Thanksgiving (Fall Break) is scheduled from November 23-27, 2026. There is no school during these dates.
The planned last day of school is June 1, 2027. Students will have an early dismissal and it is also a SIP Day. The date may be adjusted earlier if emergency days are not used.
Teacher Institute days are August 17-18, 2026, January 4, 2027, and June 2, 2027. There is no student attendance on these dates.
Fall Break takes place from November 23 through November 27, 2026.
School holidays include September 7, 2026 (Labor Day), October 12-13, 2026, January 18, 2027, February 15, 2027, and May 31, 2027 (Memorial Day).
Early Dismissal SIP Days are scheduled for September 25, 2026, October 30, 2026, February 11, 2027, March 15, 2027, April 19, 2027, May 7, 2027, and June 1, 2027.
County Institute Day is scheduled for February 26, 2027. Students do not attend school on this day.
Yes. The calendar includes TBD emergency days, which will only be used if needed. If they are not used, the last student attendance day may be adjusted to an earlier date.
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Recently Updated Calendars
Other Illinois school district calendars — recently added or updated.