Issaquah High SchoolSchool Calendar
2025-26 Academic Calendar
Key dates, holidays, and events for Issaquah High School.
School at a Glance
Upcoming events & academic holidays2025-26 Academic Year
MAY
25
No School
No School – Memorial Day
JUN
10
Grade book opens for Semester 2 grading
JUN
16
Last day of school
JUN
17
Second Semester Ends
JUN
17
Grade book closes for Semester 2 final grading
JUN
18
Potential additional inclement weather make-up day
JUN
19
No School
No School – Juneteenth
Partner TipEarly dismissal days and parent-teacher conferences are often updated 2 weeks in advance. Check back regularly to stay ahead of the schedule!