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Mart ISD Calendar 2026-2027

Mclennan County · Waco area (Region 12)

  • First day of schoolAugust 19, 2026
  • Labor DaySeptember 7, 2026
  • Thanksgiving breakNovember 23–27, 2026
  • Winter breakDecember 21, 2026 – January 5, 2027
  • MLK Jr. DayJanuary 18, 2027
  • Spring breakMarch 8–15, 2027
  • Memorial DayMay 31, 2027
  • Last day of schoolMay 21, 2027

Last updated September 18, 2026

Interactive calendar

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

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    Printable Calendar PDF

    Official Calendar

    Source: Mart ISD (martisd.org) ↗
    First day: Wednesday, August 19, 2026

    Calendar Dates

    • Staff Flexible DaysAug 3 — Aug 7Teacher Day
    • Staff Development / Student HolidayAug 10 — Aug 13No School
    • Staff Development / Student HolidayAug 17 — Aug 18No School
    • 1st Grading Period BeginsAug 19, 2026Grading
    • First Day of SchoolAug 19, 2026School Opens
    • Labor DaySep 7, 2026No School
    • Staff Development / Student HolidaySep 21, 2026No School
    • Early ReleaseOct 9, 2026Early Release
    • Staff Development / Student HolidayOct 12, 2026No School
    • 1st Grading Period EndsOct 16, 2026Grading
    • Early ReleaseOct 16, 2026Early Release
    • 2nd Grading Period BeginsOct 19, 2026Grading
    • Staff Development / Student HolidayNov 20, 2026No School
    • Thanksgiving BreakNov 23 — Nov 27No School
    • Bad Weather Make-Up DayNov 30, 2026Event
    • 2nd Grading Period EndsDec 18, 2026Grading
    • Early ReleaseDec 18, 2026Early Release
    • Christmas BreakDec 21 — Dec 31No School
    • Christmas BreakJan 1 — Jan 4No School
    • Staff Development / Student HolidayJan 5, 2027No School
    • 3rd Grading Period BeginsJan 6, 2027Grading
    • Martin Luther King Jr. DayJan 18, 2027No School
    • Staff Development / Student HolidayFeb 8, 2027No School
    • Presidents DayFeb 15, 2027No School
    • 3rd Grading Period EndsMar 5, 2027Grading
    • Early ReleaseMar 5, 2027Early Release
    • Spring BreakMar 8 — Mar 12No School
    • Staff Development / Student HolidayMar 15, 2027No School
    • 4th Grading Period BeginsMar 16, 2027Grading
    • Early ReleaseMar 25, 2027Early Release
    • Good FridayMar 26, 2027No School
    • Easter MondayMar 29, 2027No School
    • STAAR Testing WindowApr 6 — Apr 30Event
    • Staff Development / Student HolidayMay 3, 2027No School
    • 4th Grading Period EndsMay 21, 2027Grading
    • Last Day of School / Early ReleaseMay 21, 2027School Closes
    • Memorial DayMay 31, 2027No School

    Frequently asked questions

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

    The first day of school for Mart ISD is Wednesday, August 19, 2026.

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

    The last day of school for Mart ISD is Friday, May 21, 2027.

    When is Thanksgiving break for Mart ISD?

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

    When is winter break for Mart ISD?

    Mart ISD's winter break runs from December 21 through January 5.

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

    Mart ISD's spring break is March 8 through 15, 2027.

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

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

    Does Mart ISD have school on Labor Day?

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

    Does Mart ISD have school on Memorial Day?

    No. Mart ISD is closed for Memorial Day on Monday, May 31, 2027.

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