Commack High SchoolSchool Calendar
2025-26 Academic Calendar
Key dates, holidays, and events for Commack High School.
School at a Glance
Upcoming events & academic holidays2025-26 Academic Year
MAY
6
NR/WP Incoming Kindergarten Screening
MAY
6
WP Incoming Kindergarten Screening
MAY
6
CHS AP/IB Testing
MAY
6
RH Spring Showcase Gr. 2
MAY
6
RH Spring Showcase Gr. 1
MAY
6
RH Spring Showcase Gr.K
MAY
6
MSIS Spring Festival
MAY
6
CMS Gr. 8 Spring Concert/Art Show
MAY
7
RH/WP Incoming Kindergarten Screening
MAY
7
Gr. 8 NYS Science
MAY
7
CHS AP/IB Testing
MAY
7
NR Incoming Kindergarten Screening
MAY
7
Voter Registration @ CHS/CMS
MAY
7
BOE Mtg. & Budget Hearing @ Hubbs
MAY
8
Registration Deadline For 6/13 ACT
MAY
8
RH Plant Sale
MAY
8
CHS AP/IB Testing
MAY
8
NR Fun Fair
Partner TipEarly dismissal days and parent-teacher conferences are often updated 2 weeks in advance. Check back regularly to stay ahead of the schedule!