Illinois Valley High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Illinois Valley High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
AUG
24
Teachers Report/Inservice
AUG
31
First Day of School
SEP
7
No School
Labor Day - No School
OCT
9
No School
Statewide Inservice - No School
OCT
22
End of First Quarter
OCT
30
No School
Clerical Day - No School
NOV
2
Conference Week
NOV
6
No School
Conferences - No School
NOV
11
No School
Veterans Day - No School
NOV
25
No School
Non Contract - No School
NOV
26
No School
Thanksgiving - No School
NOV
27
No School
Non Contract - No School
DEC
21
No School
Winter Break - No School
JAN
1
No School
Winter Break - No School
JAN
14
End of Second Quarter
JAN
18
No School
MLK Day - No School
JAN
22
No School
Clerical Day - No School
FEB
15
No School
Presidents' Day - No School
MAR
22
No School
Spring Break - No School
APR
1
End of Third Quarter
APR
9
No School
Clerical Day - No School
APR
12
Conference Week
APR
16
No School
Conferences - No School
MAY
31
No School
Memorial Day - No School
JUN
10
Last Day of School
JUN
11
Clerical Day - Last Day for Teachers
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 Illinois Valley 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