Mcallen School District Calendar 2025 Calendar. This mcallen isd instructional academic school calendar is extremely important as it keeps you informed of brown middle school grading periods, early dismissal dates, staff. The following calendars were developed and selected by the mcallen isd lead committee for staff and community voting.

The district provides a personal environment, a. The following calendars were developed and selected by the mcallen isd lead committee for staff and community voting.