Oconomowoc HighSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Oconomowoc High.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
AUG
31
First Day of School for grades 5K-9
OCT
5
No School
No School (Staff Day)
OCT
22
Family Conferences
OCT
30
Early Release, Grades K-12
DEC
23
Winter Break
JAN
1
Winter Break
JAN
15
Early Release, Grades K-12
JAN
18
No School
No School (Staff Day)
FEB
12
No School
No School (Staff Day)
FEB
15
No School
No School (Staff Day)
MAR
19
Early Release, Grades K-12
MAR
22
Spring Break
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 Oconomowoc 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