2026-27 Academic Calendar
Key dates, holidays, and events for Ernest W Seaholm High School.
School at a Glance
Upcoming events & academic holidaysAUG
31
First Day of School
SEP
4
Labor Day Break
NOV
25
Thanksgiving Break
NOV
26
Thanksgiving Break
DEC
23
Winter Break
JAN
1
Winter Break
JAN
18
MLK, Jr. Day
FEB
15
Mid-Winter Break
FEB
16
Mid-Winter Break
MAR
26
No School
MAR
29
Spring Break
MAR
30
Spring Break
APR
2
Spring Break
MAY
31
Memorial Day
JUN
11
Last Day of School
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Ernest W Seaholm High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
August 22, 2026
SAT — National
August 28, 2026
SAT — National
September 1, 2026
ACT — National
September 1, 2026
SAT — National
State Assessments
January 25, 2027 – March 26, 2027
WIDA ACCESS
January 25, 2027 – March 26, 2027
WIDA Alternate ACCESS
April 5, 2027 – May 14, 2027
M-STEP — Grade 11 - Science and Social Studies (MME)
April 5, 2027 – April 30, 2027
M-STEP — Paper/Pencil
April 5, 2027 – May 21, 2027
MI-Access Alternate Assessment
April 5, 2027 – April 30, 2027
Michigan Merit Exam (MME) — WIN Work Readiness Assessment