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AHSD25 Arlington Heights School IL Calendar 26-27

  • 2026/27
  • Illinois
  • 6 teacher days

The AHSD25 Arlington Heights School 2026–27 school year runs from August 20, 2026 to June 3, 2027. Breaks include Thanksgiving break November 26, winter break December 21-31, and spring break March 22-26. The table below lists all teacher workdays. Download the PDF calendar, or read the FAQs.

School year starts Thu, Aug 20, 2026 First Day of School
School year ends Thu, Jun 3, 2027 Last Day of School
Next key date Thu, Aug 20, 2026 Counts down once the school year is under way

AHSD25 Arlington Heights School 2026-27 calendar

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AHSD25 Arlington Heights School 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
  • Other scheduled date

August 2026

  • August 17, 2026 — Institute Day
  • August 18, 2026 — Institute Day
  • August 19, 2026 — Teaming Day
  • August 20, 2026 — First Day of School

September 2026

  • September 7, 2026 — Labor Day - All Schools Closed
  • September 21, 2026 — Non-Attendance Day - All Schools Closed

October 2026

  • October 21, 2026 — Middle School 1st Quarter Ends
  • October 22, 2026 — Parent/Teacher Conferences - Staff Only
  • October 23, 2026 — Parent/Teacher Conferences - Staff Only
  • October 30, 2026 — Middle School Progress Reports

November 2026

  • November 3, 2026 — Election Day - All Schools Closed
  • November 13, 2026 — Elementary 1st Trimester Ends
  • November 20, 2026 — Elementary Progress Reports
  • November 23, 2026 — Non-Attendance Day - All Schools Closed
  • November 24, 2026 — Non-Attendance Day - All Schools Closed

December 2026

  • December 21-31, 2026 — Winter Break - All Schools Closed

January 2027

  • January 1, 2027 — Winter Break - All Schools Closed
  • January 4, 2027 — School Improvement Day - Staff Only
  • January 15, 2027 — Middle School 2nd Quarter Ends
  • January 18, 2027 — Martin Luther King Jr. Day - All Schools Closed
  • January 22, 2027 — Middle School Progress Reports

February 2027

  • February 12, 2027 — Parent/Teacher Conferences - Staff Only
  • February 23, 2027 — Election Day - All Schools Closed
  • February 26, 2027 — Elementary 2nd Trimester Ends

March 2027

  • March 5, 2027 — Elementary Progress Reports
  • March 19, 2027 — Middle School 3rd Quarter Ends
  • March 22-26, 2027 — Spring Break - All Schools Closed

April 2027

  • April 2, 2027 — Middle School Progress Reports
  • April 6, 2027 — School Improvement Day (Election Day) - Staff Only

May 2027

  • May 28, 2027 — School Improvement Day - Staff Only
  • May 31, 2027 — Memorial Day - All Schools Closed

June 2027

  • June 3, 2027 — Last Day of School
  • June 4, 2027 — Records Day - Staff Only

July 2027

AHSD25 Arlington Heights School teacher and staff days 2026/27

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

  • August 17, 2026 Institute Day District source
  • August 18, 2026 Institute Day District source
  • January 4, 2027 School Improvement Day - Staff Only District source
  • April 6, 2027 School Improvement Day (Election Day) - Staff Only District source
  • May 28, 2027 School Improvement Day - Staff Only District source
  • June 4, 2027 Records Day - Staff Only District source

AHSD25 Arlington Heights School breaks and holidays

School is closed to students on these dates.

  • September 7, 2026 Labor Day - All Schools Closed Holiday
  • September 21, 2026 Non-Attendance Day - All Schools Closed Holiday
  • November 3, 2026 Election Day - All Schools Closed Holiday
  • November 23, 2026 Non-Attendance Day - All Schools Closed Holiday
  • November 24, 2026 Non-Attendance Day - All Schools Closed Holiday
  • November 25, 2026 Non-Attendance Day - All Schools Closed Holiday
  • November 26, 2026 Thanksgiving Day - All Schools Closed Holiday
  • November 27, 2026 Non-Attendance Day - All Schools Closed Holiday
  • December 21-31, 2026 Winter Break - All Schools Closed Break
  • January 1, 2027 Winter Break - All Schools Closed Break
  • January 18, 2027 Martin Luther King Jr. Day - All Schools Closed Holiday
  • February 23, 2027 Election Day - All Schools Closed Holiday
  • March 22-26, 2027 Spring Break - All Schools Closed Break
  • May 31, 2027 Memorial Day - All Schools Closed Holiday

Your checked 2026/27 AHSD25 Arlington Heights School planning calendar

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

Useful now36 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 April 30, 2026.
Full term dates table

AHSD25 Arlington Heights School 2026–27 calendar dates

DateEvent
August 17, 2026Institute Day
August 18, 2026Institute Day
August 19, 2026Teaming Day
August 20, 2026First Day of School
September 7, 2026Labor Day - All Schools Closed
September 21, 2026Non-Attendance Day - All Schools Closed
October 21, 2026Middle School 1st Quarter Ends
October 22, 2026Parent/Teacher Conferences - Staff Only
October 23, 2026Parent/Teacher Conferences - Staff Only
October 30, 2026Middle School Progress Reports
November 3, 2026Election Day - All Schools Closed
November 13, 2026Elementary 1st Trimester Ends
November 20, 2026Elementary Progress Reports
November 23, 2026Non-Attendance Day - All Schools Closed
November 24, 2026Non-Attendance Day - All Schools Closed
November 25, 2026Non-Attendance Day - All Schools Closed
November 26, 2026Thanksgiving Day - All Schools Closed
November 27, 2026Non-Attendance Day - All Schools Closed
December 21-31, 2026Winter Break - All Schools Closed
January 1, 2027Winter Break - All Schools Closed
January 4, 2027School Improvement Day - Staff Only
January 15, 2027Middle School 2nd Quarter Ends
January 18, 2027Martin Luther King Jr. Day - All Schools Closed
January 22, 2027Middle School Progress Reports
February 12, 2027Parent/Teacher Conferences - Staff Only
February 23, 2027Election Day - All Schools Closed
February 26, 2027Elementary 2nd Trimester Ends
March 5, 2027Elementary Progress Reports
March 19, 2027Middle School 3rd Quarter Ends
March 22-26, 2027Spring Break - All Schools Closed
April 2, 2027Middle School Progress Reports
April 6, 2027School Improvement Day (Election Day) - Staff Only
May 28, 2027School Improvement Day - Staff Only
May 31, 2027Memorial Day - All Schools Closed
June 3, 2027Last Day of School
June 4, 2027Records Day - Staff Only

Arlington Heights School District 25 Calendar 2026-2027 FAQ

When is the first day of school in Arlington Heights School District 25 for 2026-2027?
The first day of school is Thursday, August 20, 2026.
When is spring break in Arlington Heights School District 25 for 2026-2027?
Spring break is from Monday, March 22, 2027 through Friday, March 26, 2027.
When is Christmas break in Arlington Heights School District 25 for 2026-2027?
Christmas break falls during winter break from Monday, December 21, 2026 through Friday, January 1, 2027.
When is winter break in Arlington Heights School District 25 for 2026-2027?
Winter break is from Monday, December 21, 2026 through Friday, January 1, 2027.
When is Thanksgiving break in Arlington Heights School District 25 for 2026-2027?
Thanksgiving break is from Monday, November 23, 2026 through Friday, November 27, 2026, with Thanksgiving Day on November 26, 2026.
When is the last day of school in Arlington Heights School District 25 for 2026-2027?
The last day of school is Thursday, June 3, 2027.
When is Labor Day in Arlington Heights School District 25 for 2026-2027?
Labor Day is observed on Monday, September 7, 2026, and schools are closed.
When is Martin Luther King Jr. Day in Arlington Heights School District 25 for 2026-2027?
Martin Luther King Jr. Day is on Monday, January 18, 2027, and schools are closed.
When is Memorial Day in Arlington Heights School District 25 for 2026-2027?
Memorial Day is on Monday, May 31, 2027, and schools are closed.
When are parent-teacher conferences in Arlington Heights School District 25 for 2026-2027?
Parent-teacher conferences are scheduled for October 22–23, 2026 and February 12, 2027.

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AHSD25 Arlington Heights School calendar FAQs

When is the first day of school in Arlington Heights School District 25 for 2026-2027?
The first day of school is Thursday, August 20, 2026.
When is spring break in Arlington Heights School District 25 for 2026-2027?
Spring break is from Monday, March 22, 2027 through Friday, March 26, 2027.
When is Christmas break in Arlington Heights School District 25 for 2026-2027?
Christmas break falls during winter break from Monday, December 21, 2026 through Friday, January 1, 2027.
When is winter break in Arlington Heights School District 25 for 2026-2027?
Winter break is from Monday, December 21, 2026 through Friday, January 1, 2027.
When is Thanksgiving break in Arlington Heights School District 25 for 2026-2027?
Thanksgiving break is from Monday, November 23, 2026 through Friday, November 27, 2026, with Thanksgiving Day on November 26, 2026.
When is the last day of school in Arlington Heights School District 25 for 2026-2027?
The last day of school is Thursday, June 3, 2027.
When is Labor Day in Arlington Heights School District 25 for 2026-2027?
Labor Day is observed on Monday, September 7, 2026, and schools are closed.
When is Martin Luther King Jr. Day in Arlington Heights School District 25 for 2026-2027?
Martin Luther King Jr. Day is on Monday, January 18, 2027, and schools are closed.
When is Memorial Day in Arlington Heights School District 25 for 2026-2027?
Memorial Day is on Monday, May 31, 2027, and schools are closed.
When are parent-teacher conferences in Arlington Heights School District 25 for 2026-2027?
Parent-teacher conferences are scheduled for October 22–23, 2026 and February 12, 2027.

Dates can change after publication. Read our calendar disclaimer.