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Mercer Island School District WA Calendar 26-27

  • 2026/27
  • Washington

The Mercer Island School District 2026–27 school year runs from Aug 26, 2026 to Jun 17, 2027. Breaks include Thanksgiving break Nov 26-27, winter break Dec 21 - Jan 1, and spring break Apr 12-16. The table below lists all holidays. Download the PDF calendar, or read the FAQs.

School year starts Wed, Aug 26, 2026 First Day of School
School year ends Thu, Jun 17, 2027 Last Day of School
Next key date Wed, Aug 26, 2026 Counts down once the school year is under way

Mercer Island School District 2026-27 calendar

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Mercer Island School District school year calendar

Every published date for 2026–27, colour-coded by what happens that day.

  • First day of school
  • Last day of school
  • Holiday - school closed
  • Break / vacation

August 2026

  • Aug 26, 2026 — First Day of School

September 2026

October 2026

November 2026

  • Nov 26-27, 2026 — Thanksgiving Break

December 2026

  • Dec 21, 2026 - Jan 1, 2027 — Winter Break (Christmas Break)

January 2027

  • Dec 21, 2026 - Jan 1, 2027 — Winter Break (Christmas Break)
  • Jan 18, 2027 — Martin Luther King Jr. Day (No School)

February 2027

  • Feb 15-19, 2027 — Mid-Winter Break

March 2027

April 2027

  • Apr 12-16, 2027 — Spring Break

May 2027

  • May 31, 2027 — Memorial Day (No School)

June 2027

  • Jun 17, 2027 — Last Day of School

July 2027

Mercer Island School District breaks and holidays

School is closed to students on these dates.

  • Nov 26-27, 2026 Thanksgiving Break Break
  • Dec 21, 2026 - Jan 1, 2027 Winter Break (Christmas Break) Break
  • Jan 18, 2027 Martin Luther King Jr. Day (No School) Holiday
  • Feb 15-19, 2027 Mid-Winter Break Break
  • Apr 12-16, 2027 Spring Break Break
  • May 31, 2027 Memorial Day (No School) Holiday

Your checked 2026/27 Mercer Island School District planning calendar

How these dates are put together, and what to double-check before you book anything.

Useful now8 published dates for the 2026–27 school year, laid out month by month.
CheckedTaken from the district’s own published calendar, not retyped from memory.
Kept currentLast updated March 30, 2026.
Full term dates table

Mercer Island School District wa 2026–27 calendar dates

DateEvent
Aug 26, 2026First Day of School
Nov 26-27, 2026Thanksgiving Break
Dec 21, 2026 - Jan 1, 2027Winter Break (Christmas Break)
Jan 18, 2027Martin Luther King Jr. Day (No School)
Feb 15-19, 2027Mid-Winter Break
Apr 12-16, 2027Spring Break
May 31, 2027Memorial Day (No School)
Jun 17, 2027Last Day of School

Mercer Island School District Calendar 2026-2027 FAQs

When is the first day of school in Mercer Island School District 2026-2027?
The first day of school is August 26, 2026.
When is spring break in Mercer Island School District 2027?
Spring break is from April 12 to April 16, 2027.
When is Christmas break in Mercer Island School District 2026?
Christmas break runs from December 21, 2026 to January 1, 2027.
When is winter break in Mercer Island School District 2026-2027?
Winter break is scheduled from December 21, 2026 through January 1, 2027.
When is Thanksgiving break in Mercer Island School District 2026?
Thanksgiving break is from November 26 to November 27, 2026.
When is the last day of school in Mercer Island School District 2027?
The last day of school is June 17, 2027.
When is mid-winter break in Mercer Island School District 2027?
Mid-winter break is from February 15 to February 19, 2027.
Is there school on Martin Luther King Jr. Day in Mercer Island School District 2027?
No, there is no school on January 18, 2027 for Martin Luther King Jr. Day.
Is there school on Memorial Day in Mercer Island School District 2027?
No, there is no school on May 31, 2027 for Memorial Day.

Useful next steps

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Mercer Island School District calendar FAQs

When is the first day of school in Mercer Island School District 2026-2027?
The first day of school is August 26, 2026.
When is spring break in Mercer Island School District 2027?
Spring break is from April 12 to April 16, 2027.
When is Christmas break in Mercer Island School District 2026?
Christmas break runs from December 21, 2026 to January 1, 2027.
When is winter break in Mercer Island School District 2026-2027?
Winter break is scheduled from December 21, 2026 through January 1, 2027.
When is Thanksgiving break in Mercer Island School District 2026?
Thanksgiving break is from November 26 to November 27, 2026.
When is the last day of school in Mercer Island School District 2027?
The last day of school is June 17, 2027.
When is mid-winter break in Mercer Island School District 2027?
Mid-winter break is from February 15 to February 19, 2027.
Is there school on Martin Luther King Jr. Day in Mercer Island School District 2027?
No, there is no school on January 18, 2027 for Martin Luther King Jr. Day.
Is there school on Memorial Day in Mercer Island School District 2027?
No, there is no school on May 31, 2027 for Memorial Day.

Dates can change after publication. Read our calendar disclaimer.