Leavenworth Sr HighSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Leavenworth Sr High.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
SEP
18
First Day of School for All Students; Lawson Alternate Schedule
JAN
28
No School
PD (End of Yr) / .5 Work Day / No School (Snow Make-up Day)
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 Leavenworth Sr 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