For the 2026–2027 school year, the district serves 3,400 students across 5 schools in Illinois. The school year starts August 12, 2026, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with Mahomet-Seymour CUSD #3 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Mahomet-Seymour CUSD #3. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Mahomet-Seymour CUSD #3's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Mahomet-Seymour CUSD #3 CUSD 3.
Sources and Checks
Where these dates come from
How the 2026–2027 Mahomet-Seymour CUSD #3 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Mahomet-Seymour CUSD #3 published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against mahometseymour.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 Mahomet-Seymour CUSD #3 before booking around a date.
Common Questions
Frequently Asked Questions
Mahomet-Seymour CUSD #3 Calendar 2026–2027 — important dates and answers.
The first day of school is August 12, 2026.
Spring break is from March 15 to March 19, 2027.
Christmas break begins on December 21, 2026 and continues through January 1, 2027.
Winter break runs from December 21, 2026 to January 1, 2027.
Thanksgiving break is from November 25 to November 27, 2026.
The last official day for students is May 21, 2027, with a 2-hour early dismissal.
Classes resume on January 5, 2027.
Yes, teacher institute days are on August 10-11, 2026, January 4, 2027, and February 12, 2027. Students do not attend on these days.
Memorial Day is observed on May 31, 2027, and there is no school.
Yes, several early dismissal days are scheduled throughout the year, including September 16, October 14, November 11, December 9, January 13, February 10, March 10, and April 14, 2027.
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Recently Updated Calendars
Other Illinois school district calendars — recently added or updated.