Houston High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Houston High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
SEP
4
Professional Development Day
SEP
7
Labor Day
OCT
9
End of 1st Quarter
OCT
12
Fall Break
OCT
19
2nd Quarter Begins
NOV
2
District Learning Day
NOV
23
Flex Professional Development Days
NOV
25
Thanksgiving Break
DEC
16
Semester Exams
DEC
18
End of 2nd Quarter
JAN
4
Administrative Day
JAN
5
3rd Quarter Begins
JAN
18
Martin Luther King, Jr. Day
FEB
15
Presidents' Day/District Learning Day
MAR
12
3rd Quarter Ends
MAR
15
Spring Break
MAR
22
4th Quarter Begins
MAR
26
Good Friday
MAR
29
Easter Break
MAY
19
Semester Exams
MAY
21
4th Quarter Ends
Calendar TipEarly dismissal days and parent-teacher conferences are often updated 2 weeks in advance. Check back regularly to stay ahead of the schedule!
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Houston High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
Testing window
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
Testing window
August 22, 2026
SAT — National
Test date
August 28, 2026
SAT — National
Registration deadline
September 1, 2026
ACT — National
Late registration deadline
September 1, 2026
SAT — National
Late registration deadline
State Assessments
November 30, 2026 – December 17, 2026
TCAP — End-of-Course (EOC)
Testing window
TN
April 19, 2027 – May 6, 2027
TCAP — End-of-Course (EOC)
Testing window
TN