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HSD3 MT Calendar 26-27

  • 2026/27
  • Montana
  • 7 teacher days

The HSD3 2026–27 school year runs from Aug 19, 2026 to Jun 4, 2027. Breaks include Thanksgiving break Nov 25-27, winter break Dec 21-31, and spring break Mar 29-31. The table below lists all teacher workdays and holidays. Download or print the calendar, or read the FAQs.

School year starts Wed, Aug 19, 2026 First Day of School
School year ends Fri, Jun 4, 2027 Last Day of School (Early Out)
Next key date Wed, Aug 19, 2026 Counts down once the school year is under way

HSD3 2026-27 calendar

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

Official School Calendar for Academic Year 2026–2027

HSD3 Calendar 26-27 Revised [PDF]

HSD3 school year calendar

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

  • First / last day
  • Break
  • Holiday
  • Teacher / staff day
  • Other date

August 2026

  • Aug 13-14, 2026 — PIR Days (No School)
  • Aug 17-18, 2026 — Alt PIR Days (No School)
  • Aug 19, 2026 — First Day of School

September 2026

  • Sep 2-4, 2026 — Fair Break (No School)
  • Sep 7, 2026 — Labor Day (No School)
  • Sep 21, 2026 — PD Day (No School)

October 2026

  • Oct 13-14, 2026 — Parent Teacher Conferences (HMS/HHS)
  • Oct 15-16, 2026 — Statewide PIR Days (No School)
  • Oct 30, 2026 — End of 1st Quarter (HMS/HHS)

November 2026

  • Nov 6, 2026 — PD Day (No School)
  • Nov 13, 2026 — End of 1st Trimester (EL-4th)
  • Nov 17-19, 2026 — Parent Teacher Conferences (EL-4th)
  • Nov 25-27, 2026 — Thanksgiving Break (No School)

December 2026

  • Dec 21-31, 2026 — Winter Break (No School)

January 2027

  • Jan 1, 2027 — Winter Break (No School)
  • Jan 14, 2027 — End of 2nd Quarter (HMS/HHS)
  • Jan 15, 2027 — PD Day (No School)
  • Jan 18, 2027 — Martin Luther King Jr. Day (No School)

February 2027

  • Feb 12, 2027 — PD Day (No School)
  • Feb 15, 2027 — Presidents Day (No School)
  • Feb 19, 2027 — End of 2nd Trimester (EL-4th)

March 2027

  • Mar 2-4, 2027 — Parent Teacher Conferences (EL-4th)
  • Mar 9-10, 2027 — Parent Teacher Conferences (HMS/HHS)
  • Mar 12, 2027 — PD Day (No School)
  • Mar 26, 2027 — End of 3rd Quarter (HMS/HHS)
  • Mar 29-31, 2027 — Spring Break (No School)

April 2027

  • Apr 1-2, 2027 — Spring Break (No School)
  • Apr 12, 2027 — PD Day (No School)

May 2027

  • May 14, 2027 — PD Day (No School)
  • May 30, 2027 — HHS Graduation
  • May 31, 2027 — Memorial Day (No School)

June 2027

  • Jun 2, 2027 — 8th Grade Promotion
  • Jun 4, 2027 — Last Day of School (Early Out)

July 2027

HSD3 teacher and staff days 2026/27

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

  • Sep 21, 2026 PD Day (No School) District source
  • Nov 6, 2026 PD Day (No School) District source
  • Jan 15, 2027 PD Day (No School) District source
  • Feb 12, 2027 PD Day (No School) District source
  • Mar 12, 2027 PD Day (No School) District source
  • Apr 12, 2027 PD Day (No School) District source
  • May 14, 2027 PD Day (No School) District source

HSD3 breaks and holidays

School is closed to students on these dates.

  • Aug 13-14, 2026 PIR Days (No School) Holiday
  • Aug 17-18, 2026 Alt PIR Days (No School) Holiday
  • Sep 2-4, 2026 Fair Break (No School) Break
  • Sep 7, 2026 Labor Day (No School) Holiday
  • Oct 15-16, 2026 Statewide PIR Days (No School) Holiday
  • Nov 25-27, 2026 Thanksgiving Break (No School) Break
  • Dec 21-31, 2026 Winter Break (No School) Break
  • Jan 1, 2027 Winter Break (No School) Break
  • Jan 18, 2027 Martin Luther King Jr. Day (No School) Holiday
  • Feb 15, 2027 Presidents Day (No School) Holiday
  • Mar 29-31, 2027 Spring Break (No School) Break
  • Apr 1-2, 2027 Spring Break (No School) Break
  • May 31, 2027 Memorial Day (No School) Holiday

Your checked 2026/27 HSD3 planning calendar

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

Useful now33 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 May 6, 2026.
Full term dates table

HSD3 2026–27 calendar dates

DateEvent
Aug 13-14, 2026PIR Days (No School)
Aug 17-18, 2026Alt PIR Days (No School)
Aug 19, 2026First Day of School
Sep 2-4, 2026Fair Break (No School)
Sep 7, 2026Labor Day (No School)
Sep 21, 2026PD Day (No School)
Oct 13-14, 2026Parent Teacher Conferences (HMS/HHS)
Oct 15-16, 2026Statewide PIR Days (No School)
Oct 30, 2026End of 1st Quarter (HMS/HHS)
Nov 6, 2026PD Day (No School)
Nov 13, 2026End of 1st Trimester (EL-4th)
Nov 17-19, 2026Parent Teacher Conferences (EL-4th)
Nov 25-27, 2026Thanksgiving Break (No School)
Dec 21-31, 2026Winter Break (No School)
Jan 1, 2027Winter Break (No School)
Jan 14, 2027End of 2nd Quarter (HMS/HHS)
Jan 15, 2027PD Day (No School)
Jan 18, 2027Martin Luther King Jr. Day (No School)
Feb 12, 2027PD Day (No School)
Feb 15, 2027Presidents Day (No School)
Feb 19, 2027End of 2nd Trimester (EL-4th)
Mar 2-4, 2027Parent Teacher Conferences (EL-4th)
Mar 9-10, 2027Parent Teacher Conferences (HMS/HHS)
Mar 12, 2027PD Day (No School)
Mar 26, 2027End of 3rd Quarter (HMS/HHS)
Mar 29-31, 2027Spring Break (No School)
Apr 1-2, 2027Spring Break (No School)
Apr 12, 2027PD Day (No School)
May 14, 2027PD Day (No School)
May 30, 2027HHS Graduation
May 31, 2027Memorial Day (No School)
Jun 2, 20278th Grade Promotion
Jun 4, 2027Last Day of School (Early Out)

HSD3 Calendar 2026-2027 FAQs

When is the first day of school in HSD3 Calendar 2026-2027?
The first day of school in HSD3 for the 2026-2027 school year is August 19, 2026.
When is spring break in HSD3 Calendar 2026-2027?
Spring Break in HSD3 is scheduled from March 29 to April 2, 2027.
When is Christmas break in HSD3 Calendar 2026-2027?
Christmas break is included in the winter break which runs from December 21, 2026 through January 1, 2027.
When is winter break in HSD3 Calendar 2026-2027?
Winter break in HSD3 is from December 21, 2026 to January 1, 2027.
When is Thanksgiving break in HSD3 Calendar 2026-2027?
Thanksgiving break is November 25–27, 2026.
When is the last day of school in HSD3 Calendar 2026-2027?
The last day of school in HSD3 is June 4, 2027 and it is an early out day.
When are PIR days in HSD3 Calendar 2026-2027?
PIR days with no school are August 13–14, 2026 and October 15–16, 2026.
When is Labor Day in HSD3 Calendar 2026-2027?
Labor Day is September 7, 2026 and there will be no school.
When is Martin Luther King Jr. Day in HSD3 Calendar 2026-2027?
Martin Luther King Jr. Day is January 18, 2027 and schools are closed.
When is Memorial Day in HSD3 Calendar 2026-2027?
Memorial Day is May 31, 2027 and there is no school.

Useful next steps

Switch school, download the calendar, or compare against other districts in Montana.

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HSD3 calendar FAQs

When is the first day of school in HSD3 Calendar 2026-2027?
The first day of school in HSD3 for the 2026-2027 school year is August 19, 2026.
When is spring break in HSD3 Calendar 2026-2027?
Spring Break in HSD3 is scheduled from March 29 to April 2, 2027.
When is Christmas break in HSD3 Calendar 2026-2027?
Christmas break is included in the winter break which runs from December 21, 2026 through January 1, 2027.
When is winter break in HSD3 Calendar 2026-2027?
Winter break in HSD3 is from December 21, 2026 to January 1, 2027.
When is Thanksgiving break in HSD3 Calendar 2026-2027?
Thanksgiving break is November 25–27, 2026.
When is the last day of school in HSD3 Calendar 2026-2027?
The last day of school in HSD3 is June 4, 2027 and it is an early out day.
When are PIR days in HSD3 Calendar 2026-2027?
PIR days with no school are August 13–14, 2026 and October 15–16, 2026.
When is Labor Day in HSD3 Calendar 2026-2027?
Labor Day is September 7, 2026 and there will be no school.
When is Martin Luther King Jr. Day in HSD3 Calendar 2026-2027?
Martin Luther King Jr. Day is January 18, 2027 and schools are closed.
When is Memorial Day in HSD3 Calendar 2026-2027?
Memorial Day is May 31, 2027 and there is no school.

Dates can change after publication. Read our calendar disclaimer.