St. Marys High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for St. Marys High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
DEC
18
Last day first semester
APR
5
5th Meeting
MAY
24
Last day instructional term
MAY
26
6th Meeting
MAY
30
Graduation date
JUN
1
Last day employment term
Calendar 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 St. Marys High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
Testing window
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
Testing window
October 1, 2026 – October 30, 2026
PSAT 8/9 — Fall
Testing window
October 1, 2026 – October 30, 2026
PSAT/NMSQT — Fall
Testing window
October 1, 2026 – October 30, 2026
SAT — School Day - Fall
Testing window
November 6, 2026
ACT — National
Registration deadline