For the 2026–2027 school year, Mendota High School publishes its official academic calendar for Illinois. Classes begin Aug 14 and end May 21. All dates listed below are sourced from the district's official publications. Verify with Mendota High School before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Mendota High School. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Mendota High School's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
- Teacher Institute DayAug 12 — Aug 13Teacher Day
- First Day of School for StudentsAug 14, 2026School Opens
- Labor Day - No SchoolSep 7, 2026No School
- 11:26 Early DismissalSep 16, 2026Event
- Teacher Institute Day - No SchoolOct 9, 2026No School
- Columbus Day - No SchoolOct 12, 2026No School
- No SchoolOct 23, 2026No School
- 11:26 Early DismissalOct 30, 2026Event
- 11:26 Early Dismissal W/Assembly (Veterans Day)Nov 11, 2026No School
- No School - ThanksgivingNov 25 — Nov 27No School
- Winter BreakDec 21 — Jan 1No School
- Teachers InstituteJan 4, 2027Teacher Day
- MLK - No SchoolJan 18, 2027No School
- 11:26 Early DismissalJan 20, 2027Event
- Presidents Day - No SchoolFeb 15, 2027No School
- 4 pm - 7 pm Parent/Teacher ConferenceFeb 17 — Feb 18Teacher Day
- 11:26 Early DismissalFeb 17, 2027Event
- No SchoolFeb 19, 2027No School
- Spring BreakMar 22 — Mar 29No School
- 11:26 Early DismissalApr 21, 2027Event
- Class of 2027 Graduation @ 3pmMay 15, 2027Event
- Last Day of School without any emergency daysMay 21, 2027School Closes
- Emergency DaysMay 24 — May 28Event
- Memorial DayMay 31, 2027No School
About the District
School Information
Details and contact information for Mendota High School.
Sources and Checks
Where these dates come from
How the 2026–2027 Mendota High School calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Mendota High School 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 Mendota High School before booking around a date.
Common Questions
Frequently Asked Questions
Mendota High School Calendar 2026–2027 — important dates and answers.
The first day of school for students at MENDOTA HIGH SCHOOL is August 14, 2026.
Spring Break at MENDOTA HIGH SCHOOL is from March 22 through March 29, 2027.
The school calendar lists Winter Break from December 21, 2026 through January 1, 2027, covering the Christmas holiday period.
Winter Break at MENDOTA HIGH SCHOOL is from December 21, 2026 through January 1, 2027.
Thanksgiving Break is from November 25 through November 27, 2026, with no school.
The last day of school is May 21, 2027, if no emergency days are used.
Teacher Institute Days are August 12-13, 2026 and October 9, 2026. A Teachers Institute is also scheduled for January 4, 2027.
MENDOTA HIGH SCHOOL will be closed for Labor Day on September 7, 2026.
MENDOTA HIGH SCHOOL will have no school on October 12, 2026 for Columbus Day.
Parent/Teacher Conferences are scheduled from 4:00 PM to 7:00 PM on October 19 and October 21, 2026, and February 17-18, 2027.
There will be no school on January 18, 2027 for Martin Luther King Jr. Day.
There will be no school on February 15, 2027 for Presidents Day.
The Class of 2027 Graduation is scheduled for May 15, 2027 at 3:00 PM.
Emergency days are scheduled for May 24 through May 28, 2027.
Memorial Day is May 31, 2027.
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Recently Updated Calendars
Other Illinois school district calendars — recently added or updated.