Academic Calendars
School Years 2026–27 & 2027–28 · Important dates and events to help you plan
SMS follows the Lake Washington School District (LWSD) academic calendar to the maximum extent possible, as most of our parents have other children who attend LWSD schools.
School Year 2026–27
Current yearSeptember 2026 – June 2027. Toddler has its own calendar; all other programs share one calendar.
School Year 2027–28
TentativeSeptember 2027 – June 2028. Dates are tentative and may be updated as school events and activities are finalized.
Blue Days on the calendar are Non-School Days (NSD). NSD Daycare on these days is included with Bundled Full Day; it is not included with Extended Day.
