Allen ISD Calendar 2026-2027

Collin County · Richardson area (Region 10)

First day of schoolAugust 13, 2026
Labor DaySeptember 7, 2026
Fall breakOctober 12–14, 2026
Thanksgiving breakNovember 23–27, 2026
Winter breakDecember 21, 2026 – January 1, 2027
MLK Jr. DayJanuary 18, 2027
Spring breakMarch 15–19, 2027
Last day of schoolMay 27, 2027

Last updated September 18, 2026

Interactive calendar

Browse the key dates month by month — colored markers show each event.

—

Allen ISD Calendar for the Year 26-27

Allen ISD Calendar for the Year 26-27 — key dates

https://www.allenisd.org — Source: Allen ISD (allenisd.org) ↗

First day: Thursday, August 13, 2026

Calendar Dates

Professional DevelopmentAug 4 — Aug 7Teacher Day
Professional DevelopmentAug 10 — Aug 12Teacher Day
First Day of SchoolAug 13, 2026School Opens
Start of Grading PeriodAug 13, 2026Grading
Labor DaySep 7, 2026No School
Professional DevelopmentSep 21, 2026Teacher Day
End of Grading PeriodOct 9, 2026Grading
Fall BreakOct 12 — Oct 14No School
Professional DevelopmentOct 15, 2026Teacher Day
Parent/Teacher ConferencesOct 16, 2026Teacher Day
Start of Grading PeriodOct 19, 2026Grading
Early ReleaseNov 20, 2026Early Release
Thanksgiving BreakNov 23 — Nov 27No School
Early ReleaseDec 18, 2026Early Release
End of Grading PeriodDec 18, 2026Grading
Winter BreakDec 21 — Dec 31No School
Winter BreakJan 1, 2027No School
Professional DevelopmentJan 4, 2027Teacher Day
Bad Weather Make-Up DayJan 4, 2027Event
Start of Grading PeriodJan 5, 2027Grading
Martin Luther King Jr. DayJan 18, 2027No School
Presidents’ DayFeb 15, 2027No School
Professional DevelopmentFeb 16, 2027Teacher Day
End of Grading PeriodMar 12, 2027Grading
Early ReleaseMar 12, 2027Early Release
Trade DayMar 15, 2027Event
Spring BreakMar 15 — Mar 19No School
Start of Grading PeriodMar 22, 2027Grading
Good FridayMar 26, 2027No School
HolidayApr 19, 2027No School
Bad Weather Make-Up DayApr 19, 2027Event
Last Day of SchoolMay 27, 2027School Closes
End of Grading PeriodMay 27, 2027Grading
Student Early ReleaseMay 27, 2027Early Release
Professional DevelopmentMay 28, 2027Teacher Day
Allen High School GraduationMay 28, 2027Event

Frequently asked questions

When is the first day of school for Allen ISD in 2026-2027?

The first day of school for Allen ISD is Thursday, August 13, 2026.

When is the last day of school for Allen ISD in 2026-2027?

The last day of school for Allen ISD is Thursday, May 27, 2027.

When is Thanksgiving break for Allen ISD?

Allen ISD has Thanksgiving break from November 23 through 27, 2026.

When is winter break for Allen ISD?

Allen ISD's winter break runs from December 21 through January 1.

When is spring break for Allen ISD in 2026-2027?

Allen ISD's spring break is March 15 through 19, 2027.

When is fall break for Allen ISD?

Allen ISD has a fall break from October 12 through 14, 2026.

Does Allen ISD have school on Martin Luther King Jr. Day?

No. Allen ISD is closed for Martin Luther King Jr. Day on Monday, January 18, 2027.

Does Allen ISD have school on Labor Day?

No. Allen ISD is closed for Labor Day on Monday, September 7, 2026.

When is Allen High School Graduation in Allen ISD 2026-2027?

Allen High School Graduation for the 2026-2027 school year is scheduled for May 28, 2027.