Boulder High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Boulder High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
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)
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 Boulder 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
October 16, 2026
SAT — National
Score release
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