The first day of school in HIGHLAND ISD is Thu, Aug 20, 2026, and the last day of school is Fri, May 21, 2027, according to the district's published calendar. Scheduled breaks include Thanksgiving Break begins; no school for students/10- & 11-mo employees (Mon, Nov 23, 2026 to Wed, Nov 25, 2026), No School - Thanksgiving Recess (Wed, Nov 25, 2026 to Fri, Nov 27, 2026), Thanksgiving Break begins; no school for students/all employees (Thu, Nov 26, 2026 to Fri, Nov 27, 2026), Winter Break begins; no school for students/employees (Mon, Dec 21, 2026 to Fri, Jan 1, 2027), No School - Winter Recess (Mon, Dec 21, 2026 to Fri, Jan 1, 2027), No School - Christmas Break (Wed, Dec 23, 2026 to Fri, Jan 1, 2027).
- First day of school
- Thu, Aug 20, 2026
- Last day of school
- Fri, May 21, 2027
- Thanksgiving Break begins; no school for students/10- & 11-mo employees
- Mon, Nov 23, 2026 to Wed, Nov 25, 2026
- No School - Thanksgiving Recess
- Wed, Nov 25, 2026 to Fri, Nov 27, 2026
- Thanksgiving Break begins; no school for students/all employees
- Thu, Nov 26, 2026 to Fri, Nov 27, 2026
- Winter Break begins; no school for students/employees
- Mon, Dec 21, 2026 to Fri, Jan 1, 2027
- No School - Winter Recess
- Mon, Dec 21, 2026 to Fri, Jan 1, 2027
- No School - Christmas Break
- Wed, Dec 23, 2026 to Fri, Jan 1, 2027
- Schools Closed; Offices Open
- Fri, Aug 28, 2026
- No School - Labor Day
- Fri, Sep 4, 2026 to Mon, Sep 7, 2026
- Labor Day; no school; holiday for students/employees
- Mon, Sep 7, 2026
- School Holiday
- Mon, Sep 7, 2026
- Labor Day - No School
- Mon, Sep 7, 2026
- Labor Day Holiday - All Schools and Offices Closed
- Mon, Sep 7, 2026
- Yom Kippur- All Schools Closed/ Offices Open
- Mon, Sep 21, 2026
- No school for students/teachers
- Mon, Sep 21, 2026
- Student Holiday / Staff PLC Day
- Mon, Sep 21, 2026
- School Holiday
- Mon, Oct 12, 2026 to Mon, Nov 2, 2026