2026-27 Academic Calendar
Key dates, holidays, and events for Istrouma High School.
School at a Glance
Upcoming events & academic holidaysOCT
9
End of the 1st Nine Weeks
OCT
9
Teacher In-Service (Students Do Not Attend)
OCT
12
Fall Break
NOV
3
Election Day
NOV
23
Thanksgiving Break
NOV
26
Thanksgiving Holiday
DEC
17
End of the 2nd Nine Weeks/Semester
DEC
18
Teacher In-Service (Students Do Not Attend)
DEC
21
Winter Break (School District Closure)
JAN
4
Certified 9, 10, 11, and 12-month employees return
JAN
5
Support employees return
JAN
6
1st Day of Second Semester for Students (A-Day)
JAN
18
Martin Luther King, Jr. Holiday
FEB
8
Mardi Gras Break
MAR
12
End of 3rd Nine Weeks
MAR
12
Teacher In-Service Asynchronous Instructional Day (B-Day)
MAR
26
Good Friday & Spring Break
MAY
7
Last Day for Graduating Seniors
MAY
21
Last Day of School for Students
MAY
24
Last Day of School for 9-Month Teachers & Support Staff
MAY
31
Memorial Day Holiday (School District Closure)
JUN
8
Last Day for Certified and Support 10-Month Employees
JUN
18
Juneteenth Holiday
JUN
21
Juneteenth Holiday (Holiday on June 18th)
JUN
28
Last Day for Certified and Support 11-Month Employees
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Istrouma High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
September 11, 2026
ACT — National
September 12, 2026
SAT — National
September 14, 2026
ACT — National
September 18, 2026
SAT — National
State Assessments
August 1, 2026 – June 30, 2027
ELPS
November 30, 2026 – December 18, 2026
LEAP 2025 High School — Fall Window
February 15, 2027 – March 19, 2027
ELPT/ELPT Connect
February 23, 2027 – March 5, 2027
ACT — Window 1
March 9, 2027 – March 19, 2027
ACT — Window 2
April 1, 2027 – May 12, 2027
LEAP 2025 High School — Spring Window