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Clinton Unit School District #15 IL Calendar 26-27

  • 2026/27
  • Illinois
  • 6 teacher days

The Clinton Unit School District #15 2026–27 school year runs from Aug 17, 2026 to May 21, 2027. Breaks include Thanksgiving break Nov 25-27 and spring break Mar 26 - Apr 2. The table below lists all teacher workdays and holidays. Download the PDF calendar, or read the FAQs.

School year starts Mon, Aug 17, 2026 First Day of School / 1:30 Dismissal
School year ends Fri, May 21, 2027 Last Day of School / 1:30 Dismissal
Next key date Mon, Aug 17, 2026 Counts down once the school year is under way

Clinton Unit School District #15 2026-27 calendar

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Clinton Unit School District #15 school year calendar

Every published date for 2026–27, colour-coded by what happens that day.

  • First day of school
  • Last day of school
  • Holiday - school closed
  • Break / vacation
  • Teacher / professional day
  • Parent-teacher conference
  • Grading period / report cards
  • Weather make-up day
  • Other scheduled date

August 2026

  • Aug 13, 2026 — No School - Teacher Institute
  • Aug 14, 2026 — No School - Teacher Institute
  • Aug 17, 2026 — First Day of School / 1:30 Dismissal

September 2026

  • Sep 7, 2026 — No School - Labor Day
  • Sep 16, 2026 — 1:30 Dismissal
  • Sep 28, 2026 — No School - Teacher Institute

October 2026

  • Oct 1, 2026 — CHS & CJHS Parent Teacher Conferences
  • Oct 12, 2026 — No School - Columbus Day
  • Oct 13, 2026 — CHS & CJHS Parent Teacher Conferences
  • Oct 16, 2026 — End of 1st Quarter
  • Oct 21, 2026 — 1:30 Dismissal

November 2026

  • Nov 3, 2026 — No School - Election Day
  • Nov 13, 2026 — End of 1st Trimester (Lincoln & Douglas)
  • Nov 17, 2026 — Lincoln & Douglas Parent Teacher Conferences
  • Nov 19, 2026 — Lincoln & Douglas Parent Teacher Conferences
  • Nov 25-27, 2026 — No School - Thanksgiving Break

December 2026

  • Dec 2, 2026 — 1:30 Dismissal
  • Dec 18, 2026 — 1:30 Dismissal / End of 2nd Quarter
  • Dec 21, 2026 - Jan 1, 2027 — No School - Holiday Break

January 2027

  • Dec 21, 2026 - Jan 1, 2027 — No School - Holiday Break
  • Jan 4, 2027 — No School - Teacher Institute
  • Jan 18, 2027 — No School - Martin Luther King Day

February 2027

  • Feb 3, 2027 — 1:30 Dismissal
  • Feb 15, 2027 — No School - President's Day
  • Feb 26, 2027 — End of 2nd Trimester (Lincoln & Douglas)

March 2027

  • Mar 5, 2027 — End of 3rd Quarter
  • Mar 10, 2027 — 1:30 Dismissal
  • Mar 25, 2027 — 1:30 Dismissal
  • Mar 26 - Apr 2, 2027 — No School - Spring Break

April 2027

  • Mar 26 - Apr 2, 2027 — No School - Spring Break
  • Apr 5, 2027 — No School - Teacher Institute
  • Apr 21, 2027 — 1:30 Dismissal

May 2027

  • May 21, 2027 — Last Day of School / 1:30 Dismissal
  • May 21, 2027 — End of 4th Quarter & 3rd Trimester (Lincoln & Douglas)
  • May 24, 2027 — No School - Teacher Institute
  • May 25 - Jun 1, 2027 — Emergency Make-up Days
  • May 31, 2027 — No School - Memorial Day

June 2027

  • May 25 - Jun 1, 2027 — Emergency Make-up Days

July 2027

Clinton Unit School District #15 teacher and staff days 2026/27

Students normally stay home on these days. Confirm with the district before making plans.

  • Aug 13, 2026 No School - Teacher Institute District source
  • Aug 14, 2026 No School - Teacher Institute District source
  • Sep 28, 2026 No School - Teacher Institute District source
  • Jan 4, 2027 No School - Teacher Institute District source
  • Apr 5, 2027 No School - Teacher Institute District source
  • May 24, 2027 No School - Teacher Institute District source

Clinton Unit School District #15 breaks and holidays

School is closed to students on these dates.

  • Sep 7, 2026 No School - Labor Day Holiday
  • Oct 12, 2026 No School - Columbus Day Holiday
  • Nov 3, 2026 No School - Election Day Holiday
  • Nov 25-27, 2026 No School - Thanksgiving Break Break
  • Dec 21, 2026 - Jan 1, 2027 No School - Holiday Break Break
  • Jan 18, 2027 No School - Martin Luther King Day Holiday
  • Feb 15, 2027 No School - President's Day Holiday
  • Mar 26 - Apr 2, 2027 No School - Spring Break Break
  • May 31, 2027 No School - Memorial Day Holiday

Your checked 2026/27 Clinton Unit School District #15 planning calendar

How these dates are put together, and what to double-check before you book anything.

Useful now37 published dates for the 2026–27 school year, laid out month by month.
CheckedTaken from the district’s own published calendar, not retyped from memory.
Kept currentLast updated July 10, 2026.
Full term dates table

Clinton Unit School District #15 2026–27 calendar dates

DateEvent
Aug 13, 2026No School - Teacher Institute
Aug 14, 2026No School - Teacher Institute
Aug 17, 2026First Day of School / 1:30 Dismissal
Sep 7, 2026No School - Labor Day
Sep 16, 20261:30 Dismissal
Sep 28, 2026No School - Teacher Institute
Oct 1, 2026CHS & CJHS Parent Teacher Conferences
Oct 12, 2026No School - Columbus Day
Oct 13, 2026CHS & CJHS Parent Teacher Conferences
Oct 16, 2026End of 1st Quarter
Oct 21, 20261:30 Dismissal
Oct 27, 2026CES Parent Teacher Conferences
Oct 29, 2026CES Parent Teacher Conferences
Nov 3, 2026No School - Election Day
Nov 13, 2026End of 1st Trimester (Lincoln & Douglas)
Nov 17, 2026Lincoln & Douglas Parent Teacher Conferences
Nov 19, 2026Lincoln & Douglas Parent Teacher Conferences
Nov 25-27, 2026No School - Thanksgiving Break
Dec 2, 20261:30 Dismissal
Dec 18, 20261:30 Dismissal / End of 2nd Quarter
Dec 21, 2026 - Jan 1, 2027No School - Holiday Break
Jan 4, 2027No School - Teacher Institute
Jan 18, 2027No School - Martin Luther King Day
Feb 3, 20271:30 Dismissal
Feb 15, 2027No School - President's Day
Feb 26, 2027End of 2nd Trimester (Lincoln & Douglas)
Mar 5, 2027End of 3rd Quarter
Mar 10, 20271:30 Dismissal
Mar 25, 20271:30 Dismissal
Mar 26 - Apr 2, 2027No School - Spring Break
Apr 5, 2027No School - Teacher Institute
Apr 21, 20271:30 Dismissal
May 21, 2027Last Day of School / 1:30 Dismissal
May 21, 2027End of 4th Quarter & 3rd Trimester (Lincoln & Douglas)
May 24, 2027No School - Teacher Institute
May 25 - Jun 1, 2027Emergency Make-up Days
May 31, 2027No School - Memorial Day

Clinton Unit School District #15 Calendar 26-27 pdf FAQs

When is the first day of school in Clinton Unit School District #15 for 2026-2027?
The first day of school for students in Clinton Unit School District #15 is August 17, 2026. Students will be dismissed at 1:30 PM on the first day.
When is Spring Break in Clinton Unit School District #15 for 2026-2027?
Spring Break is scheduled from March 26 through April 2, 2027. Classes resume on April 5, 2027, following a Teacher Institute Day.
When is Christmas Break in Clinton Unit School District #15 for 2026-2027?
Christmas Break (Holiday Break) begins on December 21, 2026 and continues through January 1, 2027.
When is Winter Break in Clinton Unit School District #15 for 2026-2027?
The district's Winter Break is the Holiday Break from December 21, 2026, through January 1, 2027.
When is Thanksgiving Break in Clinton Unit School District #15 for 2026-2027?
Thanksgiving Break is scheduled for November 25-27, 2026. There will be no school during these dates.
When is the last day of school in Clinton Unit School District #15 for 2026-2027?
The last day of school is May 21, 2027. Students will be dismissed at 1:30 PM.
When is Labor Day observed in Clinton Unit School District #15 during 2026-2027?
Labor Day is observed on September 7, 2026, and there is no school.
When is Columbus Day in Clinton Unit School District #15 for 2026-2027?
There is no school on October 12, 2026, in observance of Columbus Day.
When are Parent-Teacher Conferences in Clinton Unit School District #15 for 2026-2027?
Parent-Teacher Conferences are scheduled on October 1, October 13, October 27, October 29, November 17, and November 19, 2026.
When does the first quarter end in Clinton Unit School District #15?
The first quarter ends on October 16, 2026.
When does the second quarter end in Clinton Unit School District #15?
The second quarter ends on December 18, 2026, which is also a 1:30 PM dismissal day.
When does the third quarter end in Clinton Unit School District #15?
The third quarter ends on March 5, 2027.
When is Martin Luther King Jr. Day in Clinton Unit School District #15 for 2026-2027?
There is no school on January 18, 2027, in observance of Martin Luther King Jr. Day.
When is Presidents' Day in Clinton Unit School District #15 for 2026-2027?
Presidents' Day is observed on February 15, 2027, and there is no school.
When is Memorial Day in Clinton Unit School District #15 for 2026-2027?
Memorial Day is observed on May 31, 2027. There is no school on this day.
Are there Teacher Institute days during the Clinton Unit School District #15 2026-2027 school year?
Yes. Teacher Institute days are scheduled on August 13-14, September 28, 2026, January 4, April 5, and May 24, 2027. Students do not attend school on these dates.
Are there any scheduled 1:30 PM dismissal days during the 2026-2027 school year?
Yes. Early dismissal at 1:30 PM is scheduled on August 17, September 16, October 21, December 2, December 18, February 3, March 10, March 25, April 21, and May 21, 2027.
Are emergency make-up days included in the Clinton Unit School District #15 Calendar 2026-2027?
Yes. Emergency make-up days, if needed, are scheduled from May 25 through June 1, 2027.

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Clinton Unit School District #15 calendar FAQs

When is the first day of school in Clinton Unit School District #15 for 2026-2027?
The first day of school for students in Clinton Unit School District #15 is August 17, 2026. Students will be dismissed at 1:30 PM on the first day.
When is Spring Break in Clinton Unit School District #15 for 2026-2027?
Spring Break is scheduled from March 26 through April 2, 2027. Classes resume on April 5, 2027, following a Teacher Institute Day.
When is Christmas Break in Clinton Unit School District #15 for 2026-2027?
Christmas Break (Holiday Break) begins on December 21, 2026 and continues through January 1, 2027.
When is Winter Break in Clinton Unit School District #15 for 2026-2027?
The district's Winter Break is the Holiday Break from December 21, 2026, through January 1, 2027.
When is Thanksgiving Break in Clinton Unit School District #15 for 2026-2027?
Thanksgiving Break is scheduled for November 25-27, 2026. There will be no school during these dates.
When is the last day of school in Clinton Unit School District #15 for 2026-2027?
The last day of school is May 21, 2027. Students will be dismissed at 1:30 PM.
When is Labor Day observed in Clinton Unit School District #15 during 2026-2027?
Labor Day is observed on September 7, 2026, and there is no school.
When is Columbus Day in Clinton Unit School District #15 for 2026-2027?
There is no school on October 12, 2026, in observance of Columbus Day.
When are Parent-Teacher Conferences in Clinton Unit School District #15 for 2026-2027?
Parent-Teacher Conferences are scheduled on October 1, October 13, October 27, October 29, November 17, and November 19, 2026.
When does the first quarter end in Clinton Unit School District #15?
The first quarter ends on October 16, 2026.
When does the second quarter end in Clinton Unit School District #15?
The second quarter ends on December 18, 2026, which is also a 1:30 PM dismissal day.
When does the third quarter end in Clinton Unit School District #15?
The third quarter ends on March 5, 2027.
When is Martin Luther King Jr. Day in Clinton Unit School District #15 for 2026-2027?
There is no school on January 18, 2027, in observance of Martin Luther King Jr. Day.
When is Presidents' Day in Clinton Unit School District #15 for 2026-2027?
Presidents' Day is observed on February 15, 2027, and there is no school.
When is Memorial Day in Clinton Unit School District #15 for 2026-2027?
Memorial Day is observed on May 31, 2027. There is no school on this day.
Are there Teacher Institute days during the Clinton Unit School District #15 2026-2027 school year?
Yes. Teacher Institute days are scheduled on August 13-14, September 28, 2026, January 4, April 5, and May 24, 2027. Students do not attend school on these dates.
Are there any scheduled 1:30 PM dismissal days during the 2026-2027 school year?
Yes. Early dismissal at 1:30 PM is scheduled on August 17, September 16, October 21, December 2, December 18, February 3, March 10, March 25, April 21, and May 21, 2027.
Are emergency make-up days included in the Clinton Unit School District #15 Calendar 2026-2027?
Yes. Emergency make-up days, if needed, are scheduled from May 25 through June 1, 2027.

Dates can change after publication. Read our calendar disclaimer.