2026-27 Academic Calendar
Key dates, holidays, and events for Jefferson High.
School at a Glance
Upcoming events & academic holidaysAUG
26
Elementary Back-to-School Night
AUG
31
JMS & JHS Picture Day #2
AUG
31
JMS Back-to-School Night/JHS Eagle Fest
AUG
31
Transition Day for 4K, 5K, 6th, & 9th Grade
SEP
1
First Official Day of School- All Students
SEP
7
Labor Day- No School
SEP
16
East Picture Day
SEP
17
Sullivan Picture Day
SEP
18
Third Friday Membership Count
SEP
18
West Picture Day
SEP
25
Certified Staff Development Day- No School
OCT
2
Homecoming
OCT
7
JHS/JMS Picture Retake Day
OCT
12
JHS Parent Teacher Conferences
OCT
13
Sullivan Picture Re-Take Day
OCT
14
East Picture Re-take Day
OCT
15
West Picture Re-Take Day
OCT
22
Elementary Parent Teacher Conferences
OCT
29
Quarter 1 Ends
OCT
30
All Staff Prof. Development Day- No School
NOV
5
JMS Parent Teacher Conferences
NOV
20
Trimester 1 Ends
NOV
23
Certified Staff Development Day- No School
NOV
24
Fall Break- No School
DEC
7
JHS Parent Teacher Conferences
DEC
23
Winter Break- No School
JAN
1
Winter Break- No School
JAN
8
Second Friday Membership Count
JAN
13
JHS Exams
JAN
15
Quarter 2 & Semester 1 Ends
JAN
18
Certified Staff Professional Development- No School
FEB
3
JHS Course Selection
FEB
4
Elementary Parent Teacher Conferences
FEB
15
Certified Staff Development Day- No School
FEB
22
JHS Parent Teacher Conferences
MAR
5
Trimester 2 Ends
MAR
16
JMS Parent Teacher Conferences
MAR
22
Spring Break- No School
MAR
31
Quarter 3 Ends
APR
6
Election Day- School Board
APR
21
JHS College & Career Fair (Tentative)
MAY
3
JHS Parent Teacher Conferences
MAY
27
JHS Community Soaring to Service Day (Tentative)
MAY
28
Certified Staff Development Day- No School
MAY
31
Memorial Day- No School
JUN
2
JHS Exams
JUN
4
Last Day of Classes- 1:00 p.m. student dismissal
JUN
4
Quarter 4, Trimester 3 & Semester 2 Ends
JUN
6
Class of 2027 Graduation
JUN
10
Summer Staff Welcome/ Prep
JUN
14
Summer School 2027
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Jefferson High.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
August 28, 2026
SAT — National
September 1, 2026
ACT — National
September 1, 2026
SAT — National
September 4, 2026
SAT — National
State Assessments
March 8, 2027 – April 16, 2027
PreACT Secure
March 9, 2027 – March 19, 2027
ACT with Writing — Test Window 1
March 23, 2027 – April 2, 2027
ACT with Writing — Test Window 2
April 6, 2027 – April 16, 2027
ACT with Writing — Test Window 3
School Milestones
October 15, 2026
Homeschool PI-1206 Form Due