Plymouth HighSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Plymouth High.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
AUG
18
New Teacher Orientation
AUG
24
Professional Development
SEP
1
First Day of School
SEP
7
No School
Labor Day: No School
SEP
25
No School
Professional Development: No School
OCT
23
No School
Professional Development: No School
OCT
30
End of 1st Quarter
NOV
24
End of 1st Trimester
NOV
25
No School
Conference Comp: No School
NOV
26
No School
Thanksgiving: No School
DEC
24
Winter Break Begins
JAN
1
No School
New Years Day: No School
JAN
4
School Resumes
JAN
15
End of 2nd Quarter/Semester 1
JAN
18
No School
Professional Development: No School
FEB
19
No School
Professional Development: No School
MAR
5
End of 2nd Trimester
MAR
22
Spring Break
APR
2
End of 3rd Quarter
APR
23
No School
Professional Development: No School
MAY
28
No School
Conference Comp: No School
MAY
31
No School
Memorial Day: No School
JUN
3
End of 3rd Trimester
JUN
3
End of 4th Quarter/Semester 2
JUN
3
Student Last Day
JUN
4
Professional Development
JUN
6
Graduation
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 Plymouth High.
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
March 8, 2027 – April 16, 2027
PreACT Secure
Testing window
WI
March 9, 2027 – March 19, 2027
ACT with Writing — Test Window 1
Testing window
WI
March 23, 2027 – April 2, 2027
ACT with Writing — Test Window 2
Testing window
WI
April 6, 2027 – April 16, 2027
ACT with Writing — Test Window 3
Testing window
WI
School Milestones
October 15, 2026
Homeschool PI-1206 Form Due
Other
WI