WISD is a suburban school district with 22 schools. For the 2026-2027 school year, classes begin August 10 and end May 26. The calendar sets aside 4 additional days (September 4–February 15) that may be used as weather makeup days if needed. This calendar includes 6 professional development days — useful to know when planning childcare. Standardized testing windows: State Testing Window (November 30–December 11); State Testing Window (February 16–March 26); State Testing Window (April 5–April 30).
Also known as WISD.