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Tri-Valley Community Unit School District #3 IL Calendar 26-27

  • 2026/27
  • Illinois
  • 4 teacher days

The Tri-Valley Community Unit School District #3 2026–27 school year runs from Aug 20, 2026 to May 26, 2027. Breaks include Thanksgiving break Nov 25-27, winter break Dec 21-31, and spring break Mar 22-26. The table below lists all teacher workdays, early release days, and holidays. Download the PDF calendar, or read the FAQs.

School year starts Thu, Aug 20, 2026 First Day of School (Early Dismissal)
School year ends Wed, May 26, 2027 Last Day of School (End of 4th Quarter / 2nd Semester, Early Dismissal)
Next key date Thu, Aug 20, 2026 Counts down once the school year is under way

Tri-Valley Community Unit School District #3 2026-27 calendar

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Tri-Valley Community Unit School District #3 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
  • Early release / half day
  • Parent-teacher conference
  • Grading period / report cards
  • Weather make-up day
  • Other scheduled date

August 2026

  • Aug 18, 2026 — Teacher Institute - No School
  • Aug 19, 2026 — Teacher Institute - No School
  • Aug 20, 2026 — First Day of School (Early Dismissal)

September 2026

  • Sep 7, 2026 — Labor Day - No School
  • Sep 16, 2026 — School Improvement Day - No School

October 2026

  • Oct 12, 2026 — Columbus Day - No School
  • Oct 16, 2026 — End of 1st Quarter
  • Oct 22, 2026 — Parent-Teacher Conferences - Early Dismissal
  • Oct 23, 2026 — Parent-Teacher Conferences - No School

November 2026

  • Nov 2, 2026 — School Improvement Day - No School
  • Nov 25-27, 2026 — Thanksgiving Break

December 2026

  • Dec 18, 2026 — End of 2nd Quarter / 1st Semester (Early Dismissal)
  • Dec 21-31, 2026 — Christmas Break

January 2027

  • Jan 1, 2027 — Christmas Break
  • Jan 4, 2027 — School Improvement Day - No School
  • Jan 5, 2027 — School Resumes
  • Jan 18, 2027 — Martin Luther King Jr. Day - No School

February 2027

  • Feb 12, 2027 — Teacher Institute - No School
  • Feb 15, 2027 — Presidents' Day - No School

March 2027

  • Mar 8, 2027 — School Improvement Day - No School
  • Mar 12, 2027 — End of 3rd Quarter
  • Mar 19, 2027 — Early Dismissal
  • Mar 22-26, 2027 — Spring Break
  • Mar 29, 2027 — Spring Holiday - No School

April 2027

  • Apr 23, 2027 — School Improvement Day - No School

May 2027

  • May 26, 2027 — Last Day of School (End of 4th Quarter / 2nd Semester, Early Dismissal)
  • May 27, 2027 — Teacher Institute - No School
  • May 28, 2027 — Emergency Day
  • May 31, 2027 — Memorial Day

June 2027

  • Jun 1-4, 2027 — Emergency Days

July 2027

Tri-Valley Community Unit School District #3 teacher and staff days 2026/27

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

  • Aug 18, 2026 Teacher Institute - No School District source
  • Aug 19, 2026 Teacher Institute - No School District source
  • Feb 12, 2027 Teacher Institute - No School District source
  • May 27, 2027 Teacher Institute - No School District source

Tri-Valley Community Unit School District #3 breaks and holidays

School is closed to students on these dates.

  • Sep 7, 2026 Labor Day - No School Holiday
  • Sep 16, 2026 School Improvement Day - No School Holiday
  • Oct 12, 2026 Columbus Day - No School Holiday
  • Nov 2, 2026 School Improvement Day - No School Holiday
  • Nov 25-27, 2026 Thanksgiving Break Break
  • Dec 21-31, 2026 Christmas Break Break
  • Jan 1, 2027 Christmas Break Break
  • Jan 4, 2027 School Improvement Day - No School Holiday
  • Jan 18, 2027 Martin Luther King Jr. Day - No School Holiday
  • Feb 15, 2027 Presidents' Day - No School Holiday
  • Mar 8, 2027 School Improvement Day - No School Holiday
  • Mar 22-26, 2027 Spring Break Break
  • Mar 29, 2027 Spring Holiday - No School Holiday
  • Apr 23, 2027 School Improvement Day - No School Holiday
  • May 31, 2027 Memorial Day Holiday

Your checked 2026/27 Tri-Valley Community Unit School District #3 planning calendar

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

Useful now30 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 12, 2026.
Full term dates table

Tri-Valley Community Unit School District #3 2026–27 calendar dates

DateEvent
Aug 18, 2026Teacher Institute - No School
Aug 19, 2026Teacher Institute - No School
Aug 20, 2026First Day of School (Early Dismissal)
Sep 7, 2026Labor Day - No School
Sep 16, 2026School Improvement Day - No School
Oct 12, 2026Columbus Day - No School
Oct 16, 2026End of 1st Quarter
Oct 22, 2026Parent-Teacher Conferences - Early Dismissal
Oct 23, 2026Parent-Teacher Conferences - No School
Nov 2, 2026School Improvement Day - No School
Nov 25-27, 2026Thanksgiving Break
Dec 18, 2026End of 2nd Quarter / 1st Semester (Early Dismissal)
Dec 21-31, 2026Christmas Break
Jan 1, 2027Christmas Break
Jan 4, 2027School Improvement Day - No School
Jan 5, 2027School Resumes
Jan 18, 2027Martin Luther King Jr. Day - No School
Feb 12, 2027Teacher Institute - No School
Feb 15, 2027Presidents' Day - No School
Mar 8, 2027School Improvement Day - No School
Mar 12, 2027End of 3rd Quarter
Mar 19, 2027Early Dismissal
Mar 22-26, 2027Spring Break
Mar 29, 2027Spring Holiday - No School
Apr 23, 2027School Improvement Day - No School
May 26, 2027Last Day of School (End of 4th Quarter / 2nd Semester, Early Dismissal)
May 27, 2027Teacher Institute - No School
May 28, 2027Emergency Day
May 31, 2027Memorial Day
Jun 1-4, 2027Emergency Days

Tri-Valley Community Unit School District #3 Calendar 26-27 Revised FAQs

When is the first day of school in Tri-Valley Community Unit School District #3 for 2026-2027?
The first day of school for students in Tri-Valley Community Unit School District #3 for the 2026-2027 school year is August 20, 2026. Students will be dismissed early on the first day.
When is Spring Break in Tri-Valley Community Unit School District #3 for 2026-2027?
Spring Break is scheduled from March 22 through March 26, 2027. In addition, March 29, 2027 is observed as a Spring Holiday with no school.
When is Christmas Break in Tri-Valley Community Unit School District #3 for 2026-2027?
Christmas Break begins on December 21, 2026 and continues through January 1, 2027. Students return to school on January 5, 2027.
When is Winter Break in Tri-Valley Community Unit School District #3 for 2026-2027?
The Winter Break for the 2026-2027 school year runs from December 21, 2026, through January 1, 2027. Classes resume on January 5, 2027.
When is Thanksgiving Break in Tri-Valley Community Unit School District #3 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 Tri-Valley Community Unit School District #3 for 2026-2027?
The last day of school for students is May 26, 2027. It is also the end of the fourth quarter and second semester, and students will be dismissed early.
When are the Teacher Institute Days in Tri-Valley Community Unit School District #3 for 2026-2027?
Teacher Institute Days are August 18-19, 2026, February 12, 2027, and May 27, 2027. Students do not attend school on these days.
When are the School Improvement Days in Tri-Valley Community Unit School District #3 for 2026-2027?
School Improvement Days with no student attendance are scheduled for September 16, 2026, November 2, 2026, January 4, 2027, March 8, 2027, and April 23, 2027.
When are Parent-Teacher Conferences in Tri-Valley Community Unit School District #3 for 2026-2027?
Parent-Teacher Conferences are scheduled for October 22-23, 2026. Students have an early dismissal on October 22, while October 23 is a no-school day.
What holidays are observed by Tri-Valley Community Unit School District #3 during the 2026-2027 school year?
The district observes Labor Day (September 7, 2026), Columbus Day (October 12, 2026), Thanksgiving Break (November 25-27, 2026), Christmas Break (December 21, 2026-January 1, 2027), Martin Luther King Jr. Day (January 18, 2027), Presidents' Day (February 15, 2027), Spring Holiday (March 29, 2027), and Memorial Day (May 31, 2027).
When does the second semester end in Tri-Valley Community Unit School District #3 for 2026-2027?
The second semester ends on May 26, 2027, which is also the final day of student attendance and an early dismissal day.
Are there emergency make-up days in the Tri-Valley Community Unit School District #3 Calendar 2026-2027?
Yes. The calendar includes emergency make-up days on May 28, 2027 and June 1-4, 2027, which will only be used if needed because of weather-related school closures.

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Tri-Valley Community Unit School District #3 calendar FAQs

When is the first day of school in Tri-Valley Community Unit School District #3 for 2026-2027?
The first day of school for students in Tri-Valley Community Unit School District #3 for the 2026-2027 school year is August 20, 2026. Students will be dismissed early on the first day.
When is Spring Break in Tri-Valley Community Unit School District #3 for 2026-2027?
Spring Break is scheduled from March 22 through March 26, 2027. In addition, March 29, 2027 is observed as a Spring Holiday with no school.
When is Christmas Break in Tri-Valley Community Unit School District #3 for 2026-2027?
Christmas Break begins on December 21, 2026 and continues through January 1, 2027. Students return to school on January 5, 2027.
When is Winter Break in Tri-Valley Community Unit School District #3 for 2026-2027?
The Winter Break for the 2026-2027 school year runs from December 21, 2026, through January 1, 2027. Classes resume on January 5, 2027.
When is Thanksgiving Break in Tri-Valley Community Unit School District #3 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 Tri-Valley Community Unit School District #3 for 2026-2027?
The last day of school for students is May 26, 2027. It is also the end of the fourth quarter and second semester, and students will be dismissed early.
When are the Teacher Institute Days in Tri-Valley Community Unit School District #3 for 2026-2027?
Teacher Institute Days are August 18-19, 2026, February 12, 2027, and May 27, 2027. Students do not attend school on these days.
When are the School Improvement Days in Tri-Valley Community Unit School District #3 for 2026-2027?
School Improvement Days with no student attendance are scheduled for September 16, 2026, November 2, 2026, January 4, 2027, March 8, 2027, and April 23, 2027.
When are Parent-Teacher Conferences in Tri-Valley Community Unit School District #3 for 2026-2027?
Parent-Teacher Conferences are scheduled for October 22-23, 2026. Students have an early dismissal on October 22, while October 23 is a no-school day.
What holidays are observed by Tri-Valley Community Unit School District #3 during the 2026-2027 school year?
The district observes Labor Day (September 7, 2026), Columbus Day (October 12, 2026), Thanksgiving Break (November 25-27, 2026), Christmas Break (December 21, 2026-January 1, 2027), Martin Luther King Jr. Day (January 18, 2027), Presidents' Day (February 15, 2027), Spring Holiday (March 29, 2027), and Memorial Day (May 31, 2027).
When does the second semester end in Tri-Valley Community Unit School District #3 for 2026-2027?
The second semester ends on May 26, 2027, which is also the final day of student attendance and an early dismissal day.
Are there emergency make-up days in the Tri-Valley Community Unit School District #3 Calendar 2026-2027?
Yes. The calendar includes emergency make-up days on May 28, 2027 and June 1-4, 2027, which will only be used if needed because of weather-related school closures.

Dates can change after publication. Read our calendar disclaimer.