Charleston High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Charleston High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
OCT
9
End First Quarter - 42 Attendance Days
OCT
9
Teacher Institute - No Student Attendance
OCT
12
No School
COLUMBUS DAY - NO SCHOOL
OCT
22
Parent/Teacher Conferences - Half Day Student Attendance
OCT
23
Parent/Teacher Conferences - No Student Attendance
NOV
3
No School
ELECTION DAY - NO SCHOOL
NOV
25
No School
THANKSGIVING HOLIDAY - NO SCHOOL
DEC
18
End Second Quarter - 44 Attendance Days End First Semester - 86 Attendance Days
DEC
18
HOLIDAY BREAK BEGINS END OF SCHOOL DAY
JAN
4
Teacher Institute - No Student Attendance
JAN
5
School Resumes
JAN
18
No School
ML.KING JR.DAY - NO SCHOOL
FEB
15
No School
PRESIDENTS’ DAY - NO SCHOOL
MAR
5
Parent/Teacher Conferences - Half Day Student Attendance
MAR
12
End Third Quarter - 47 Attendance Days
MAR
15
No School
SPRING BREAK - NO SCHOOL
MAR
26
No School
GOOD FRIDAY - NO SCHOOL
MAY
14
COMMENCEMENT - Half Day Student Attendance
MAY
20
End Fourth Quarter - 43 Attendance Days End Second Semester - 90 Attendance Days School Term Closes - 176 Attendance Days
MAY
20
Last Day of Student Attendance – 2 Hour Early Dismissal Day
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 Charleston 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