Nederland Middle-Senior High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Nederland Middle-Senior High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
AUG
4
No School
District professional development days – no school
AUG
12
First day of school for 1 - 5, 6 and 9 grades
AUG
12
Kindergarten welcome days
AUG
13
First day for 7,8,10-12 grades
SEP
7
No School
Labor Day – no school, district offices closed
SEP
21
No School
District professional development day – no school
OCT
9
Quarter ends
OCT
12
No School
Fall break – no school
NOV
11
No School
Veterans Day – no school, district office closed
NOV
23
No School
Fall conference exchange days – no school
NOV
25
No School
Thanksgiving break – no school
DEC
18
Semester ends
DEC
21
No School
Winter break – no school
DEC
24
No School
Winter break – no school
JAN
1
No School
Winter break continued – no school, district office closed
JAN
4
No School
District professional development day – no school
JAN
18
No School
Martin Luther King, Jr. Day – no school, district office closed
FEB
15
No School
Presidents' Day – no school, district office closed
FEB
16
No School
Conference exchange day – no school
FEB
17
No School
District professional development day – no school
MAR
12
Quarter ends
MAR
15
No School
Spring break – no school
MAY
20
Last day for students, semester ends
MAY
21
No School
Teacher work day – no school
MAY
31
No School
Memorial Day – no school, district office closed
JUN
19
No School
Juneteenth – no school, district office closed (June 18 observed)
Partner 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 Nederland Middle-Senior High School.
National Tests
August 7, 2026
SAT — National
Registration deadline
August 11, 2026
SAT — National
Late registration deadline
August 14, 2026
ACT — National
Registration deadline
August 22, 2026
SAT — National
Test date
August 28, 2026
SAT — National
Registration deadline
September 1, 2026
ACT — National
Late registration deadline
State Assessments
January 11, 2027 – February 12, 2027
WIDA ACCESS
Testing window
CO
January 11, 2027 – February 12, 2027
WIDA Alternate ACCESS
Testing window
CO
April 5, 2027 – April 23, 2027
CMAS
Testing window
CO
April 5, 2027 – April 23, 2027
CoAlt
Testing window
CO