Middlebury Union High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Middlebury Union High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
NOV
4
Early Release
NOV
10
Diwali
NOV
23
Thanksgiving Break
DEC
9
Early Release
DEC
24
Winter Break
DEC
25
Christmas Observance
JAN
1
Winter Break
JAN
18
Martin Luther King Day
JAN
19
Inservice Day
FEB
3
Early Release Day
FEB
22
Mid-Winter Break
MAR
1
Inservice
MAR
10
Eid al-Fitr
MAR
26
Inservice
APR
7
Early Release
APR
19
Spring Break
MAY
12
Early Release
MAY
31
Memorial Day
JUN
5
MUHS Graduation
JUN
10
Anticipated Last Student Day
JUN
11
Inservice Days
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 Middlebury Union 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