Williamson County Schools school calendar
Next day off and break: Fall Break, Monday, October 12 to Friday, October 16.
2026–27 at a glance
The dates families usually look for first.
- First day
- Aug 10
- October days off
- Oct 12–16
- Thanksgiving
- Nov 23–27
- Spring break
- Mar 15–19
- Last day
- May 27
What happens in Mavo
One read-only school calendar that rolls forward each year.
Create your free account, name your family home, and add this school calendar. Mavo opens the next school date so you can add who’s handling it. When Williamson County Schools publishes another school year, it appears in the same linked calendar.
The source controls the schedule, so synced dates stay read-only. You can still add the family details Mavo knows about—who’s handling it, attendance, place, notes, and a clearer title.
One school calendar is included on Free. Everyday includes more school calendars and other outside calendar links.
Your school dates in Mavo
Williamson County Schools school calendar
First Day of School (Grades 1–12)
Williamson County Schools 2026–27 · Read-only
First Full Day of School (Grades 1–12)
Williamson County Schools 2026–27 · Read-only
First Full Day (Pre-K, Early Childhood, and Kindergarten)
Williamson County Schools 2026–27 · Read-only
Late Start (Grades 6–12)
Williamson County Schools 2026–27 · Read-only
Free calendar updates
Add the Williamson County Schools calendar
Includes 2026–27 and 2027–28. We add each new school year after Williamson County Schools publishes it.
Full district calendar
Current and upcoming Williamson County Schools dates
Staff-only summer work days are left out. Student holidays caused by staff development are included because they change the family schedule.
Current calendar
2026–27 student dates
- School date
First Day of School (Grades 1–12)
Students in grades 1–12 attend for a half day.
- School date
First Full Day of School (Grades 1–12)
First full student day for grades 1–12.
- School date
First Full Day (Pre-K, Early Childhood, and Kindergarten)
First full day for pre-kindergarten, early childhood, and kindergarten students.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- No school
Labor Day
Students do not attend; the system is closed for Labor Day.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- School date
Constitution Day Observed
Students are in school for Constitution Day Observed.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- School date
End of First Quarter
End of the first quarter grading period; 44 grading days.
- No school
Fall Break
Students are on fall break during this district-wide break.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- No school
Election Day
Students do not report to school for Election Day.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- School date
Veterans’ Day
Students are in school for Veterans’ Day.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early. This date replaces November 11.
- No school
Thanksgiving Break
Students do not attend during the Thanksgiving holiday.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- School date
End of First Semester
End of the first semester and 39 grading days; students attend for a half day.
- No school
Winter Break
Students do not attend during winter break.
- School date
Second Semester Begins
The second semester begins with a full student day; grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- No school
Martin Luther King, Jr. Day
Students do not attend; the system is closed for Martin Luther King, Jr. Day.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- No school
Mid-Winter Break
Students do not attend during the mid-winter and Presidents’ Day break.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Early Release (K–5)
K–5 students are dismissed 113 minutes early.
- School date
End of Third Quarter
End of the third quarter grading period; 46 grading days.
- No school
Spring Break
Students do not attend during spring break.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- No school
Spring Holiday
Students do not attend; the system is closed for the spring holiday.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- Early release
Late Start (Grades 6–12)
Grades 6–12 have a 45-minute late start.
- School date
Last Day of School
Last student day and end of the second semester; students attend for a half day. The semester includes 48 grading days.
Upcoming calendar
2027–28 student dates
- Early release
First Student Day (Grades 1–12)
First student day for grades 1–12; students attend a half day.
- No school
Labor Day
No students attend; system closed for Labor Day.
- No school
Fall Break
No students attend during fall break.
- No school
Site-Based Professional Development Day
No students attend; site-based professional development day.
- No school
Thanksgiving Holiday
No students attend during the Thanksgiving holiday; system closed.
- Early release
End of First Semester
Students attend a half day; end of the first semester.
- No school
Winter Break
No students attend during winter break; the system is closed December 21–31.
- School date
Second Semester Begins
Second semester begins; students attend a full day.
- No school
Martin Luther King, Jr. Day
No students attend; system closed for Martin Luther King, Jr. Day.
- No school
Mid-Winter Break
No students attend during mid-winter break.
- No school
Presidential Primary
No students attend; no-school day for the Presidential Primary.
- No school
Spring Break
No students attend during spring break; system closed.
- No school
Spring Holiday
No students attend; system closed for the spring holiday.
- Early release
Last Student Day and End of Second Semester
Last student day; students attend a half day. End of the second semester.
- School date
Graduation Window
Graduation window runs from May 25 through May 28.
Recognizable source. Easier calendar.
This page is an independent convenience copy. Williamson County Schools's PDFs remain the source of truth, and dates can change after publication.
Don’t see your district? Request it
Free calendar updates
Add the Williamson County Schools calendar
Includes 2026–27 and 2027–28. We add each new school year after Williamson County Schools publishes it.