Hinkley High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Hinkley High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
AUG
6
First Day of School (Grades 1-12)
AUG
10
First Day of School (Preschool and Kindergarten)
SEP
4
Recess Day
OCT
12
Fall Vacation
NOV
23
Thanksgiving Vacation
DEC
21
Winter Vacation
JAN
1
No School
New Year's Day
JAN
18
No School
Martin Luther King, Jr. Day
FEB
15
No School
President’s Day
MAY
26
Last Day of School (Preschool)
MAY
31
No School
Memorial Day
JUN
19
No School
Juneteenth
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 Hinkley High School.
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
January 11, 2027 – February 12, 2027
WIDA ACCESS
Testing window
CO
January 11, 2027 – February 12, 2027
WIDA Alternate ACCESS
Testing window
CO
April 5, 2027 – April 23, 2027
CMAS
Testing window
CO
April 5, 2027 – April 23, 2027
CoAlt
Testing window
CO