- First day of schoolAugust 13, 2026
- Labor DaySeptember 7, 2026
- Thanksgiving breakNovember 23–27, 2026
- Winter breakDecember 21–31, 2026
- MLK Jr. DayJanuary 18, 2027
- Spring breakMarch 8–12, 2027
- Memorial DayMay 31, 2027
- Last day of schoolMay 20, 2027
Last updated September 18, 2026
Interactive calendar
Browse the key dates month by month — colored markers show each event.
🎒 First day: Thursday, August 13, 2026
Calendar Dates
- First Day of SchoolAug 13, 2026School Opens
- Labor DaySep 7, 2026No School
- Student Holiday / Staff WorkdaySep 28, 2026No School
- Student and Staff HolidayOct 12, 2026No School
- Student Holiday / Staff WorkdayNov 9, 2026No School
- Student Holiday / Staff Comp DayNov 23 — Nov 24No School
- Thanksgiving BreakNov 23 — Nov 27No School
- Student and Staff HolidayNov 25 — Nov 27No School
- Early ReleaseDec 18, 2026Early Release
- Student and Staff HolidayDec 21 — Dec 25No School
- Winter BreakDec 21 — Dec 31No School
- Student and Staff HolidayDec 28 — Jan 1No School
- Student and Staff HolidayJan 4, 2027No School
- Student Holiday / Staff WorkdayJan 5, 2027No School
- Martin Luther King Jr. DayJan 18, 2027No School
- Student Holiday / Staff WorkdayFeb 12, 2027No School
- Student and Staff HolidayFeb 15, 2027No School
- Spring BreakMar 8 — Mar 12No School
- Student and Staff HolidayMar 26, 2027No School
- Student and Staff HolidayMar 29, 2027No School
- Student Holiday and Staff WorkdayApr 5, 2027No School
- 7th & 8th Grade RLA STAARApr 8, 2027Event
- 3rd & 4th Grade RLA STAARApr 13, 2027Event
- 5th & 6th Grade RLA STAARApr 14, 2027Event
- 8th Grade Social Studies STAARApr 15, 2027Event
- 7th & 8th Grade Math STAARApr 20, 2027Event
- 5th & 8th Grade Science STAARApr 21, 2027Event
- 5th & 6th Grade Math STAARApr 22, 2027Event
- 3rd & 4th Grade Math STAARApr 27, 2027Event
- Student Holiday / Staff WorkdayApr 30, 2027No School
- Student Holiday / Staff Comp DayMay 7, 2027No School
- Student and Staff HolidayMay 14, 2027No School
- Baccalaureate ServiceMay 16 — May 17Event
- Early Release / Last Day of SchoolMay 20, 2027School Closes
- Student Holiday / Staff WorkdayMay 21, 2027No School
- MHS Graduation CeremonyMay 22, 2027Event
- Memorial DayMay 31, 2027No School
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Frequently asked questions
When is the first day of school for Mason ISD in 2026-2027?
The first day of school for Mason ISD is Thursday, August 13, 2026.
When is the last day of school for Mason ISD in 2026-2027?
The last day of school for Mason ISD is Thursday, May 20, 2027.
When is Thanksgiving break for Mason ISD?
Mason ISD has Thanksgiving break from November 23 through 27, 2026.
When is winter break for Mason ISD?
Mason ISD's winter break runs from December 21 through 31.
When is spring break for Mason ISD in 2026-2027?
Mason ISD's spring break is March 8 through 12, 2027.
Does Mason ISD have school on Martin Luther King Jr. Day?
No. Mason ISD is closed for Martin Luther King Jr. Day on Monday, January 18, 2027.
Does Mason ISD have school on Labor Day?
No. Mason ISD is closed for Labor Day on Monday, September 7, 2026.
Does Mason ISD have school on Memorial Day?
No. Mason ISD is closed for Memorial Day on Monday, May 31, 2027.
