For the 2026–2027 school year, the district serves 3 schools in Illinois. Classes begin August 19, 2026 and end May 28, 2027, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with Mokena School District 159 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Mokena School District 159. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Mokena School District 159's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Mokena School District 159 SD.
Sources and Checks
Where these dates come from
How the 2026–2027 Mokena School District 159 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Mokena School District 159 published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against mokena159.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 Mokena School District 159 before booking around a date.
Common Questions
Frequently Asked Questions
Mokena School District 159 Calendar 2026–2027 — important dates and answers.
The first day of school for students in Mokena School District 159 for the 2026-2027 school year is August 19, 2026 (Wednesday).
Spring Break is scheduled from March 29 through April 2, 2027. Students return to school on April 5, 2027.
Christmas Break begins on December 24, 2026 and continues through the holiday period, with students remaining on Winter Break until school resumes after the New Year.
Winter Break runs from December 21, 2026 through January 1, 2027. Students return following the Teacher Institute Day on January 4, 2027.
Thanksgiving Break is observed from November 23 through November 27, 2026. Students return to school on November 30, 2026.
The last scheduled day of school for students is May 28, 2027 (Friday), provided no emergency days are used.
Teacher Institute Days are scheduled for August 17-18, 2026, January 4, 2027, and March 19, 2027.
Parent/Teacher Conference Days are scheduled for November 3, 2026 and April 6, 2027.
School Improvement/Early Dismissal Days are September 4, October 30, November 13, November 20, December 18, February 12, March 12, April 16, and May 28, 2027.
Yes. The calendar includes five emergency days scheduled for June 1-4 and June 7, 2027. These days will only be used if needed due to emergency school closures.
The first trimester ends on November 13, 2026.
Memorial Day is observed on May 31, 2027, and schools are closed for the holiday.
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Recently Updated Calendars
Other Illinois school district calendars — recently added or updated.