Katy Isd Calendar 25-26 - Last day of school for seniors. Web wednesday, august 13, 2025: Approved by the katy isd board of trustees on january 22, 2024. Approved by the katy isd board of trustees on january 23, 2023. 13, 2025, and end may 15, 2026, for seniors and may 21, 2026, for the. Wednesday, august 13, 2025 :
13, 2025, and end may 15, 2026, for seniors and may 21, 2026, for the. Wednesday, august 13, 2025 : Approved by the katy isd board of trustees on january 22, 2024. Approved by the katy isd board of trustees on january 23, 2023. Web wednesday, august 13, 2025: Last day of school for seniors.