Visual Calendar
Official calendar scans for McKINNEY ISD. Click any image to open full-screen.
Official Document
The official calendar PDF published by McKINNEY ISD. Download or view inline.
School Calendar
Month-by-month view of McKINNEY ISD's 2026–2027 academic calendar — holidays, breaks, and key dates.
About the District
Details and contact information for McKINNEY ISD.
Common Questions
McKINNEY ISD Calendar 2026–2027 — important dates and answers.
The first day of school in McKINNEY ISD for the 2026-2027 school year is August 13, 2026.
Spring Break in McKINNEY ISD for 2026-2027 is scheduled from March 15 through March 19, 2027.
Christmas Break in McKINNEY ISD for the 2026-2027 school year begins on December 21, 2026 and continues through January 1, 2027.
Winter Break in McKINNEY ISD for 2026-2027 runs from December 21, 2026 to January 1, 2027.
Thanksgiving Break in McKINNEY ISD for the 2026-2027 school year is from November 23 through November 27, 2026.
The last day of school for McKINNEY ISD in the 2026-2027 school year is May 28, 2027.
Labor Day will be observed on September 7, 2026 in McKINNEY ISD.
Martin Luther King Jr. Day will be observed on January 18, 2027 in McKINNEY ISD.
Memorial Day will be observed on May 31, 2027 in McKINNEY ISD.
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