Thurston High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Thurston High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
OCT
10
In-service Day
NOV
11
Veterans Day
NOV
24
End of Trimester 1
NOV
24
Grading/Planning/Conferences
NOV
27
Thanksgiving Holiday
DEC
22
Winter break
JAN
2
Winter break
JAN
5
In-service Day
JAN
19
Martin Luther King, Jr. Day
FEB
16
Presidents Day
MAR
23
Spring break
MAY
25
Memorial Day
JUN
11
Last day of School - Early Release
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 Thurston 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
State Assessments
January 12, 2027 – April 9, 2027
ELPA — Summative
Testing window
OR
February 2, 2027 – June 11, 2027
SBAC — English Language Arts, Mathematics, Science
Testing window
OR