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WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 IL Calendar 26-27

  • 2026/27
  • Illinois

The WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 2026–27 school year ends on May 24, 2027. Breaks include Thanksgiving break Nov 24, winter break Dec 18, and spring break Mar 19. The table below lists all teacher workdays, early release days, and holidays. Download or print the calendar, or read the FAQs.

School year starts Tue, Aug 18, 2026 First Day of School – Early Dismissal – Teachers’ Institute
School year ends Mon, May 24, 2027 Last Day of School – Early Dismissal – School Improvement
Next key date Tue, Aug 18, 2026 Counts down once the school year is under way

WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 2026-27 calendar

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WILLIAMSVILLE-SHERMAN COMMUNITY 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
  • Early release / half day
  • Parent-teacher conference
  • Weather make-up day
  • Other scheduled date

August 2026

  • Aug 17, 2026 — No School – Teachers’ Institute
  • Aug 18, 2026 — First Day of School – Early Dismissal – Teachers’ Institute
  • Aug 19, 2026 — Early Dismissal – Teachers’ Institute

September 2026

  • Sep 7, 2026 — No School – Labor Day

October 2026

  • Oct 7, 2026 — Regular Dismissal – Parent-Teacher Conferences
  • Oct 8, 2026 — Regular Dismissal – Parent-Teacher Conferences
  • Oct 9, 2026 — No School – Teachers’ Institute
  • Oct 12, 2026 — No School – Columbus Day

November 2026

  • Nov 17, 2026 — Early Dismissal – Parent-Teacher Conferences
  • Nov 18, 2026 — Early Dismissal – Parent-Teacher Conferences
  • Nov 24, 2026 — Early Dismissal – Thanksgiving Break
  • Nov 25-27, 2026 — No School – Thanksgiving Break

December 2026

  • Dec 18, 2026 — Early Dismissal – Winter Break
  • Dec 21, 2026-Jan 1, 2027 — No School – Winter Break

January 2027

  • Dec 21, 2026-Jan 1, 2027 — No School – Winter Break
  • Jan 4, 2027 — No School – Teachers’ Institute
  • Jan 5, 2027 — School Resumes
  • Jan 18, 2027 — No School – Martin Luther King’s Birthday

February 2027

  • Feb 12, 2027 — Early Dismissal – School Improvement
  • Feb 15, 2027 — No School – Presidents’ Day

March 2027

  • Mar 19, 2027 — Early Dismissal – Spring Break
  • Mar 22-29, 2027 — No School – Spring Break

April 2027

  • Apr 16, 2027 — Early Dismissal – School Improvement

May 2027

  • May 7, 2027 — Early Dismissal – School Improvement
  • May 24, 2027 — Last Day of School – Early Dismissal – School Improvement
  • May 25, 2027 — No School – Teachers’ Institute
  • May 26-28, 2027 — Required Emergency Make-Up Days
  • May 31, 2027 — No School – Memorial Day

June 2027

  • Jun 1-2, 2027 — Required Emergency Make-Up Days

July 2027

WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 breaks and holidays

School is closed to students on these dates.

  • Aug 17, 2026 No School – Teachers’ Institute Holiday
  • Sep 7, 2026 No School – Labor Day Holiday
  • Oct 9, 2026 No School – Teachers’ Institute Holiday
  • Oct 12, 2026 No School – Columbus Day Holiday
  • Nov 25-27, 2026 No School – Thanksgiving Break Break
  • Dec 21, 2026-Jan 1, 2027 No School – Winter Break Break
  • Jan 4, 2027 No School – Teachers’ Institute Holiday
  • Jan 18, 2027 No School – Martin Luther King’s Birthday Holiday
  • Feb 15, 2027 No School – Presidents’ Day Holiday
  • Mar 22-29, 2027 No School – Spring Break Break
  • May 25, 2027 No School – Teachers’ Institute Holiday
  • May 31, 2027 No School – Memorial Day Holiday

Your checked 2026/27 WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 planning calendar

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

Useful now28 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 August 11, 2026.
Full term dates table

WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 2026–27 calendar dates

DateEvent
Aug 17, 2026No School – Teachers’ Institute
Aug 18, 2026First Day of School – Early Dismissal – Teachers’ Institute
Aug 19, 2026Early Dismissal – Teachers’ Institute
Sep 7, 2026No School – Labor Day
Oct 7, 2026Regular Dismissal – Parent-Teacher Conferences
Oct 8, 2026Regular Dismissal – Parent-Teacher Conferences
Oct 9, 2026No School – Teachers’ Institute
Oct 12, 2026No School – Columbus Day
Nov 17, 2026Early Dismissal – Parent-Teacher Conferences
Nov 18, 2026Early Dismissal – Parent-Teacher Conferences
Nov 24, 2026Early Dismissal – Thanksgiving Break
Nov 25-27, 2026No School – Thanksgiving Break
Dec 18, 2026Early Dismissal – Winter Break
Dec 21, 2026-Jan 1, 2027No School – Winter Break
Jan 4, 2027No School – Teachers’ Institute
Jan 5, 2027School Resumes
Jan 18, 2027No School – Martin Luther King’s Birthday
Feb 12, 2027Early Dismissal – School Improvement
Feb 15, 2027No School – Presidents’ Day
Mar 19, 2027Early Dismissal – Spring Break
Mar 22-29, 2027No School – Spring Break
Apr 16, 2027Early Dismissal – School Improvement
May 7, 2027Early Dismissal – School Improvement
May 24, 2027Last Day of School – Early Dismissal – School Improvement
May 25, 2027No School – Teachers’ Institute
May 26-28, 2027Required Emergency Make-Up Days
May 31, 2027No School – Memorial Day
Jun 1-2, 2027Required Emergency Make-Up Days

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WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 calendar FAQs

When is the first day of school in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
The first day of school is August 18, 2026. It is also an early dismissal and Teachers’ Institute day.
When is spring break in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
Spring Break begins with an early dismissal on March 19, 2027. There is no school from March 22 through March 29, 2027.
When is Christmas break in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
Christmas Break is part of Winter Break. Students have an early dismissal on December 18, 2026, followed by no school from December 21, 2026 through January 1, 2027.
When is winter break in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
Winter Break begins after an early dismissal on December 18, 2026. There is no school from December 21, 2026 through January 1, 2027. School resumes on January 5, 2027, after a Teachers’ Institute day on January 4.
When is Thanksgiving break in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
Students have an early dismissal on November 24, 2026 for Thanksgiving Break. There is no school from November 25 through November 27, 2026.
When is the last day of school in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
The last day of school is May 24, 2027. It is an early dismissal and School Improvement day.
When is Labor Day in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
There is no school on September 7, 2026 for Labor Day.
When are the October Parent-Teacher Conferences in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
Parent-Teacher Conferences are scheduled for October 7 and October 8, 2026. Both days have regular dismissal.
When are the November Parent-Teacher Conferences in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
Parent-Teacher Conferences are scheduled for November 17 and November 18, 2026. Both days are early dismissal days.
When is Martin Luther King Jr. Day in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
There is no school on January 18, 2027 for Martin Luther King’s Birthday.
When is Presidents’ Day in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
There is no school on February 15, 2027 for Presidents’ Day.
When are School Improvement early dismissal days in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
School Improvement early dismissal days are February 12, April 16, May 7, and May 24, 2027.
When is Memorial Day in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
There is no school on May 31, 2027 for Memorial Day.
When are the emergency make-up days in WILLIAMSVILLE-SHERMAN COMMUNITY UNIT SCHOOL DISTRICT #15 for 2026-2027?
The required emergency make-up days are May 26, May 27, May 28, June 1, and June 2, 2027.

Dates can change after publication. Read our calendar disclaimer.