Galesburg Senior High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Galesburg Senior High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
SEP
7
No School
Labor Day-No School
OCT
8
End of 1st Quarter-One Hour Early Dismissal
NOV
3
No School
Election Day-No School
DEC
21
No School
Winter Break-No School
JAN
1
No School
Winter Break-No School
FEB
15
No School
Presidents Day-No School
MAR
1
No School
Spring Break-No School
APR
1
No School
Spring Break-No School
MAY
7
Emergency 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 Galesburg Senior 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 28, 2026
SAT — National
Registration deadline
September 1, 2026
ACT — National
Late registration deadline
September 1, 2026
SAT — National
Late registration deadline
September 4, 2026
SAT — National
Score release