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McHenry School District D15 IL Calendar 26-27

Key dates, holidays, breaks, a downloadable calendar, and frequently asked questions for the 2026–27 school year.

Official School Calendar for Academic Year 2026–2027

McHenry School District D15 Calendar 26-27 [PDF]

McHenry School District D15 2026–27 calendar dates

DateEvent
Aug 17-18, 2026Teacher Institute Day - No School
Aug 19, 2026First Day of School
Sep 7, 2026Labor Day - No School
Sep 18, 2026Early Release Day
Oct 9, 2026Teacher Institute Day - No School
Oct 12, 2026No School
Nov 6, 2026Early Release Day / End of Trimester 1
Nov 23-24, 2026Parent Teacher Conferences - No School
Nov 25-27, 2026Thanksgiving Break - No School
Dec 18, 2026Early Release Day
Dec 21, 2026 - Jan 1, 2027Winter Recess - No School
Jan 4, 2027Classes Resume
Jan 15, 2027Early Release Day
Jan 18, 2027Martin Luther King Jr. Day - No School
Feb 12, 2027Teacher Institute Day - No School
Feb 15, 2027Presidents' Day - No School
Feb 19, 2027End of Trimester 2
Mar 26, 2027Day of Non Attendance - No School
Mar 29 - Apr 2, 2027Spring Recess - No School
Apr 5, 2027Classes Resume
Apr 23, 2027Early Release Day
May 25, 2027Last Day of School for PreK
May 26, 2027Early Release Day / End of Trimester 3 / Last Day of School
Download this calendar table as PDF

McHenry School District 15 2026-2027 Calendar FAQs

When is the first day of school in McHenry School District 15 2026-2027?
The first day of school in McHenry School District 15 for the 2026-2027 school year is August 19, 2026.
When is spring break in McHenry School District 15 2026-2027?
Spring break (Spring Recess) is from March 29, 2027 to April 2, 2027.
When is Christmas break in McHenry School District 15 2026-2027?
Christmas break is part of the Winter Recess from December 21, 2026 to January 1, 2027.
When is winter break in McHenry School District 15 2026-2027?
Winter break runs from December 21, 2026 through January 1, 2027.
When is Thanksgiving break in McHenry School District 15 2026-2027?
Thanksgiving break is from November 25 to November 27, 2026.
When is the last day of school in McHenry School District 15 2026-2027?
The last day of school is May 26, 2027 (if no emergency days are used).
When do classes resume after winter break in McHenry School District 15 2026-2027?
Classes resume on January 4, 2027 after winter break.
When is Labor Day holiday in McHenry School District 15 2026-2027?
Labor Day is observed on September 7, 2026 and there is no school.
When is Martin Luther King Jr. Day in McHenry School District 15 2026-2027?
Martin Luther King Jr. Day is on January 18, 2027 and there is no school.
When is Presidents' Day in McHenry School District 15 2026-2027?
Presidents' Day is on February 15, 2027 and schools are closed.
When are Parent-Teacher Conferences in McHenry School District 15 2026-2027?
Parent-Teacher Conferences are scheduled for November 23 and November 24, 2026, and there is no school on those days.
When is the end of Trimester 1 in McHenry School District 15 2026-2027?
Trimester 1 ends on November 6, 2026.
When is the end of Trimester 2 in McHenry School District 15 2026-2027?
Trimester 2 ends on February 19, 2027.
When is the end of Trimester 3 in McHenry School District 15 2026-2027?
Trimester 3 ends on May 26, 2027.

Dates can change after publication. Read our calendar disclaimer.