West Chester Henderson High SchoolSchool Calendar

2026-27 Academic Calendar

Key dates, holidays, and events for West Chester Henderson High School.

School at a Glance
Upcoming events & academic holidays
2026-27 Academic Year

AUG

24

No School
Teacher Inservice, no school for students

AUG

27

No School
Teacher Inservice, no school for students

AUG

31

First Day of School

SEP

4

Half-day Dismissal, PM Teacher Inservice

SEP

7

No School
Schools and District Closed

SEP

21

No School
Schools Closed

OCT

12

No School
Teacher Inservice, no school for students

NOV

3

No School
Teacher Inservice, no school for students

NOV

23

ES Half-Day; MS & HS Full Day [K-5 conferences]

NOV

24

ES & MS Half-Day; HS Full Day [K-12 conferences]

NOV

25

No School
No School for Students [K-12 conferences in A.M.]

NOV

26

No School
Schools and District Closed

DEC

23

Half-day Dismissal, PM Teacher Inservice

DEC

24

No School
Schools Closed

DEC

25

No School
Schools Closed

JAN

1

No School
Schools Closed

JAN

4

Schools Reopen

JAN

15

Half-day Dismissal, PM Teacher Inservice

JAN

18

No School
Schools and District Closed

FEB

12

Half-day Dismissal, PM Teacher Inservice

FEB

15

No School
Schools and District Closed

MAR

9

No School
Schools Closed

MAR

24

Half-day Dismissal, PM Teacher Inservice

MAR

25

No School
Schools Closed

MAR

26

No School
Schools Closed

APR

15

No School
ES No School; MS & HS Full Day [K-5 conferences]

APR

16

No School
ES No School; MS & HS Full Day [K-5 conferences]

APR

19

No School
Teacher Inservice, no school for students

MAY

18

No School
Teacher Inservice, no school for students

MAY

31

No School
Schools and District Closed

JUN

10

Half-day Dismissal, PM Teacher Inservice

JUN

11

Half-day Dismissal, PM Teacher Inservice, Last Day

JUN

18

No School
Schools and District Closed
View Full 2026-27 Calendar
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 West Chester Henderson 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
+76 more national tests this school year

State Assessments

December 7, 2026 – December 18, 2026

Keystone Exams — Algebra I

Testing window
PA

December 7, 2026 – December 18, 2026

Keystone Exams — Literature

Testing window
PA

December 7, 2026 – December 18, 2026

Keystone Exams — Biology

Testing window
PA

January 4, 2027 – January 15, 2027

Keystone Exams — Algebra I

Testing window
PA

January 4, 2027 – January 15, 2027

Keystone Exams — Literature

Testing window
PA

January 4, 2027 – January 15, 2027

Keystone Exams — Biology

Testing window
PA
+5 more state assessments this school year
See the full national test & school calendar