28 days Montgomery County families need a plan for
Montgomery County (MD) has 28 weekdays in the 2026-27 school year when school is closed or lets out early, not counting federal holidays. That is about the same as the median of 26 across the 30 largest US districts. School runs from August 25, 2026 to June 11, 2027.
Plan your year
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Every day off, in order (21)
Mon, Sep 21: Non-Instructional Day
Fri, Oct 16: Professional Development Day
Mon, Nov 2: Grading and Planning
Tue, Nov 3: Election Day
Fri, Nov 27: Thanksgiving Holiday
Thu, Dec 24: Winter Break Holiday
Mon, Dec 28: Non-Instructional Day
Tue, Dec 29: Non-Instructional Day
Wed, Dec 30: Systemwide Closure
Thu, Dec 31: Systemwide Closure
Mon, Jan 25: Grading and Planning
Tue, Mar 9: Professional Development Day
Fri, Mar 26: Spring Break Holiday
Mon, Mar 29: Spring Break Holiday
Tue, Mar 30: Non-Instructional Day
Wed, Mar 31: Non-Instructional Day
Thu, Apr 1: Systemwide Closure
Fri, Apr 2: Systemwide Closure
Mon, Apr 12: Grading and Planning
Thu, Apr 22: Non-Instructional Day (designated make-up day)
Mon, May 17: Non-Instructional Day (designated make-up day)
Early release days
Fri, Sep 18: Early release day for students
Mon, Nov 23: Early release days for students
Tue, Nov 24: Early release days for students
Wed, Nov 25: Early release days for students
Wed, Dec 23: Early release day for students
Fri, Feb 26: Early release day for students
Fri, Jun 11: Last day of school for students; early release day for students
How we counted, and where this comes from
We read the official Montgomery County 2026-27 calendar on October 4, 2026: https://ww2.montgomeryschoolsmd.org/calendar/pdfs/2026-2027/2026-2027-TRADITIONAL-Calendar.pdf. A day counts when school is closed for all students on a weekday, or the whole district lets students out early. Holidays that almost every employer observes (Labor Day, Thanksgiving, Christmas Day, New Year’s Day, Martin Luther King Jr. Day and Memorial Day) are never counted. Indigenous Peoples’ Day, Veterans Day and Presidents’ Day count as holidays only when the district closes school for that holiday by name, because many employers stay open. That left 7 holidays out of the count here. Most students start Tue Aug 25 (Mon Aug 24 is a transition day only for students entering K, 6 or 9, grade 3 at grades 3-5 schools, and new students), and if emergencies close schools three or more days, Apr 22, May 17 and June 14-17 can become make-up school days. Calendars change and some days vary by school, so check with your school before you book childcare.