Visual Calendar
Official calendar scans for Castleberry ISD. Click any image to open full-screen.
School Calendar
Month-by-month view of Castleberry ISD's 2026–2027 academic calendar — holidays, breaks, and key dates.
About the District
Details and contact information for Castleberry ISD.
Common Questions
Castleberry ISD Calendar 2026–2027 — important dates and answers.
The first day of school in Castleberry ISD for the 2026-2027 academic year is August 13, 2026.
Spring Break in Castleberry ISD is scheduled from March 15 to March 19, 2027.
Christmas Break for Castleberry ISD students runs from December 21, 2026 to January 1, 2027.
Winter Break in Castleberry ISD takes place from December 21, 2026 through January 1, 2027.
Thanksgiving Break in Castleberry ISD will be from November 23 to November 27, 2026.
The last day of school in Castleberry ISD for the 2026-2027 academic year is May 26, 2027.
Labor Day holiday will be observed on September 7, 2026.
Columbus Day holiday is scheduled for October 12, 2026.
Martin Luther King Jr. Day will be observed on January 18, 2027.
Memorial Day holiday is May 31, 2027.
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