The first day of school in HIGH ISLAND ISD is Tue, Aug 4, 2026, and the last day of school is Wed, Jun 17, 2026, according to the district's published calendar. Scheduled breaks include WELCOME BACK BREAKFAST/ STAFF - FACULTY MEETING (Mon, Aug 3, 2026), Labor Day Break (Holiday) (Fri, Sep 4, 2026 to Mon, Sep 7, 2026), Thanksgiving Break begins; no school for students/10- & 11-mo employees (Mon, Nov 23, 2026 to Wed, Nov 25, 2026), Holidays (Thanksgiving Break) (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).
- First day of school
- Tue, Aug 4, 2026
- Last day of school
- Wed, Jun 17, 2026
- WELCOME BACK BREAKFAST/ STAFF - FACULTY MEETING
- Mon, Aug 3, 2026
- Labor Day Break (Holiday)
- Fri, Sep 4, 2026 to Mon, Sep 7, 2026
- Thanksgiving Break begins; no school for students/10- & 11-mo employees
- Mon, Nov 23, 2026 to Wed, Nov 25, 2026
- Holidays (Thanksgiving Break)
- 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
- Labor Day; no school; holiday for students/employees
- Mon, Sep 7, 2026
- Labor Day
- Mon, Sep 7, 2026
- No school for students/teachers
- Mon, Sep 21, 2026
- Holiday (Yom Kippur)
- Mon, Sep 21, 2026
- Student Holiday (Staff Development Day)
- Mon, Oct 12, 2026
- No school for students/teachers due to conferences
- Fri, Oct 23, 2026
- Staff professional learning day; no school for students
- Fri, Oct 30, 2026
- Student Holiday (Teacher Workday)
- Mon, Nov 2, 2026
- Student Holiday (School Planning Day)
- Tue, Nov 3, 2026
- Veterans Day - No school for students/teachers
- Wed, Nov 11, 2026