Chester Junior/Senior HighSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Chester Junior/Senior High.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
AUG
19
First Day of School
SEP
7
No School
Labor Day, no school
NOV
2
No School
Professional Learning Day, no school
NOV
11
No School
Veterans Day, no school
NOV
23
No School
Thanksgiving Break, no school
NOV
27
No School
Thanksgiving Break, no school
DEC
21
No School
Winter Break, no school
JAN
1
No School
Winter Break, no school
JAN
18
No School
Martin Luther King Day, no school
FEB
15
No School
February Break, no school
FEB
19
No School
February Break, no school
MAR
26
Closure Make-up Day, may have school
MAR
29
No School
Spring Break, no school
APR
2
No School
Spring Break, no school
APR
23
Closure Make-up Day, may have school
MAY
28
Closure Make-up Day, may have school
MAY
31
No School
Memorial Day, no school
JUN
11
Last Day of School
Partner 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 Chester Junior/Senior High.
National Tests
August 7, 2026
SAT — National
Registration deadline
August 11, 2026
SAT — National
Late registration deadline
August 14, 2026
ACT — National
Registration deadline
August 22, 2026
SAT — National
Test date
August 28, 2026
SAT — National
Registration deadline
September 1, 2026
ACT — National
Late registration deadline
State Assessments
March 1, 2027 – June 30, 2027
CAASPP — Statewide Window
Testing window
CA
School Milestones
October 1, 2026 – October 15, 2026
Private School Affidavit Filing Window
Other
CA