Mountainside High SchoolSchool Calendar
2025-26 Academic Calendar
Key dates, holidays, and events for Mountainside High School.
School at a Glance
Upcoming events & academic holidays2025-26 Academic Year
JUN
4
Seniors' Last Day
MAY
6
Even Day - Ext 5/6
MAY
7
Odd Day
MAY
7
Superintendent's Coffee Chat
MAY
8
Even Day - Ext 7/8
MAY
10
Mother's Day (Mexico)
MAY
11
Odd Day
MAY
12
Even Day - Mav Time
MAY
13
Odd Day
MAY
14
Even Day - Ext 1/2
MAY
15
Odd Day
MAY
15
Principal's Coffee (In-Person)
MAY
18
Even Day - Ext 3/Advisory
MAY
19
Odd Day
MAY
19
Budget Committee Meeting
MAY
20
Even Day - Ext 5/6
MAY
21
Odd Day
MAY
21
Shavuot
MAY
22
Even Day - Ext 7/8
MAY
22
Shavuot
MAY
23
Shavuot
MAY
25
No School
No School - Memorial Day
MAY
26
Odd Day
MAY
26
Major Holiday - Eid al-Adha - Begins at Sunset
MAY
27
Even Day - Mav Time
MAY
27
Major Holiday - Eid al-Adha
MAY
28
Day After Eid al-Adha
MAY
28
Odd Day
MAY
29
Even Day - Advisory Only
JUN
1
Odd Day
JUN
2
Even Day - Mav Time
JUN
3
Odd Day
JUN
3
Seniors' Last Day of Classes
JUN
4
Even Day - Mav Time
JUN
4
Seniors' Last Day
JUN
5
Odd Day
JUN
5
Graduation
JUN
8
Even Day - 2nd Opportunity
JUN
9
Odd Day - Half Day Schedule 1st & 3rd Opportunities
JUN
10
Even Day - Half Day Schedule 6th & 8th Opportunities
JUN
11
Last Day for students
JUN
11
Odd Day - Half Day Schedule 5th & 7th Opportunities
JUN
12
No School
No School - Grading Day
JUN
16
Al Hijra
JUN
17
Al Hijra
JUN
19
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!