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Ontario-Montclair School District CA Calendar 26-27

  • 2026/27
  • California

The Ontario-Montclair School District 2026–27 school year runs from Aug 5, 2026 to May 20, 2027. Breaks include Thanksgiving break Nov 23-27, winter break Dec 18-31, and spring break Mar 29-31. The table below lists all teacher workdays. Download or print the calendar, or read the FAQs.

School year starts Wed, Aug 5, 2026 First Day for Students
School year ends Thu, May 20, 2027 Last Day for Students
Next key date Wed, Aug 5, 2026 Counts down once the school year is under way

Ontario-Montclair School District 2026-27 calendar

The district's published calendar. Select an image to open it full size.

Official School Calendar for Academic Year 2026–2027

Ontario-Montclair School District Calendar 26-27 Revised [PDF]

Ontario-Montclair School District Calendar 2026-2027 – Important Dates & FAQ

When is the first day of school in Ontario-Montclair School District for 2026-2027?
The first day for students in Ontario-Montclair School District for the 2026-2027 school year is August 5, 2026.
When is Spring Break in Ontario-Montclair School District 2027?
Spring Break in Ontario-Montclair School District runs from March 29 to April 2, 2027.
When is Christmas Break in Ontario-Montclair School District 2026?
Christmas Break in Ontario-Montclair School District begins on December 18, 2026 and continues through January 1, 2027.
When is Winter Break in Ontario-Montclair School District 2026-2027?
Winter Break in Ontario-Montclair School District takes place from December 18, 2026 through January 1, 2027.
When is Thanksgiving Break in Ontario-Montclair School District 2026?
Thanksgiving Break for Ontario-Montclair School District is scheduled from November 23 to November 27, 2026.
When is the last day of school in Ontario-Montclair School District for 2026-2027?
The last day for students in Ontario-Montclair School District for the 2026-2027 school year is May 20, 2027.
When is Labor Day in Ontario-Montclair School District during the 2026-2027 school year?
Labor Day is observed on September 7, 2026 and schools are closed.
When is Martin Luther King Jr. Day in Ontario-Montclair School District 2027?
Martin Luther King Jr. Day is observed on January 18, 2027 in Ontario-Montclair School District.
When is Presidents' Day in Ontario-Montclair School District 2027?
Presidents' Day is observed on February 15, 2027 and schools are closed.
When is Memorial Day in Ontario-Montclair School District 2027?
Memorial Day will be observed on May 31, 2027.
When is Juneteenth observed in Ontario-Montclair School District 2027?
Juneteenth (observed) will take place on June 18, 2027.

Ontario-Montclair School District school year calendar

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

  • First / last day
  • Break
  • Holiday
  • Early release
  • Other date

August 2026

  • Jul 30 - Aug 4, 2026 — Teacher Preparation Days
  • Aug 5, 2026 — First Day for Students

September 2026

  • Sep 7, 2026 — Labor Day
  • Sep 28-30, 2026 — Middle School Parent Conference

October 2026

  • Oct 1-2, 2026 — Middle School Parent Conference
  • Oct 5, 2026 — Non-School Day

November 2026

  • Nov 6, 2026 — Elementary School Minimum Day - Report Card
  • Nov 11, 2026 — Veterans Day
  • Nov 16-20, 2026 — Elementary School Parent Conference
  • Nov 23-27, 2026 — Thanksgiving Break

December 2026

  • Dec 17, 2026 — Middle School Minimum Day - Report Card
  • Dec 18-31, 2026 — Winter Break

January 2027

  • Jan 1, 2027 — Winter Break
  • Jan 18, 2027 — Martin Luther King Jr. Day

February 2027

  • Feb 8, 2027 — Lincoln's Birthday
  • Feb 15, 2027 — Presidents' Day

March 2027

  • Mar 1-5, 2027 — Middle School Parent Conference
  • Mar 5, 2027 — Elementary School Minimum Day - Report Card
  • Mar 22-26, 2027 — Elementary School Parent Conference
  • Mar 29-31, 2027 — Spring Break

April 2027

  • Apr 1-2, 2027 — Spring Break
  • Apr 30, 2027 — Middle School Minimum Day - Report Card

May 2027

  • May 20, 2027 — Last Day for Students
  • May 31, 2027 — Memorial Day

June 2027

  • Jun 18, 2027 — Juneteenth (observed)

July 2027

Ontario-Montclair School District breaks and holidays

School is closed to students on these dates.

  • Jul 3, 2026 Independence Day (observed) Holiday
  • Sep 7, 2026 Labor Day Holiday
  • Nov 11, 2026 Veterans Day Holiday
  • Nov 23-27, 2026 Thanksgiving Break Break
  • Dec 18-31, 2026 Winter Break Break
  • Jan 1, 2027 Winter Break Break
  • Jan 18, 2027 Martin Luther King Jr. Day Holiday
  • Feb 15, 2027 Presidents' Day Holiday
  • Mar 29-31, 2027 Spring Break Break
  • Apr 1-2, 2027 Spring Break Break
  • May 31, 2027 Memorial Day Holiday
  • Jun 18, 2027 Juneteenth (observed) Holiday

Your checked 2026/27 Ontario-Montclair School District planning calendar

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

Useful now26 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 29, 2026.
Full term dates table

Ontario-Montclair School District 2026–27 calendar dates

DateEvent
Jul 3, 2026Independence Day (observed)
Jul 30 - Aug 4, 2026Teacher Preparation Days
Aug 5, 2026First Day for Students
Sep 7, 2026Labor Day
Sep 28-30, 2026Middle School Parent Conference
Oct 1-2, 2026Middle School Parent Conference
Oct 5, 2026Non-School Day
Nov 6, 2026Elementary School Minimum Day - Report Card
Nov 11, 2026Veterans Day
Nov 16-20, 2026Elementary School Parent Conference
Nov 23-27, 2026Thanksgiving Break
Dec 17, 2026Middle School Minimum Day - Report Card
Dec 18-31, 2026Winter Break
Jan 1, 2027Winter Break
Jan 18, 2027Martin Luther King Jr. Day
Feb 8, 2027Lincoln's Birthday
Feb 15, 2027Presidents' Day
Mar 1-5, 2027Middle School Parent Conference
Mar 5, 2027Elementary School Minimum Day - Report Card
Mar 22-26, 2027Elementary School Parent Conference
Mar 29-31, 2027Spring Break
Apr 1-2, 2027Spring Break
Apr 30, 2027Middle School Minimum Day - Report Card
May 20, 2027Last Day for Students
May 31, 2027Memorial Day
Jun 18, 2027Juneteenth (observed)

Useful next steps

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Ontario-Montclair School District calendar FAQs

When is the first day of school in Ontario-Montclair School District for 2026-2027?
The first day for students in Ontario-Montclair School District for the 2026-2027 school year is August 5, 2026.
When is Spring Break in Ontario-Montclair School District 2027?
Spring Break in Ontario-Montclair School District runs from March 29 to April 2, 2027.
When is Christmas Break in Ontario-Montclair School District 2026?
Christmas Break in Ontario-Montclair School District begins on December 18, 2026 and continues through January 1, 2027.
When is Winter Break in Ontario-Montclair School District 2026-2027?
Winter Break in Ontario-Montclair School District takes place from December 18, 2026 through January 1, 2027.
When is Thanksgiving Break in Ontario-Montclair School District 2026?
Thanksgiving Break for Ontario-Montclair School District is scheduled from November 23 to November 27, 2026.
When is the last day of school in Ontario-Montclair School District for 2026-2027?
The last day for students in Ontario-Montclair School District for the 2026-2027 school year is May 20, 2027.
When is Labor Day in Ontario-Montclair School District during the 2026-2027 school year?
Labor Day is observed on September 7, 2026 and schools are closed.
When is Martin Luther King Jr. Day in Ontario-Montclair School District 2027?
Martin Luther King Jr. Day is observed on January 18, 2027 in Ontario-Montclair School District.
When is Presidents' Day in Ontario-Montclair School District 2027?
Presidents' Day is observed on February 15, 2027 and schools are closed.
When is Memorial Day in Ontario-Montclair School District 2027?
Memorial Day will be observed on May 31, 2027.
When is Juneteenth observed in Ontario-Montclair School District 2027?
Juneteenth (observed) will take place on June 18, 2027.

Dates can change after publication. Read our calendar disclaimer.