Student grades can be accessed through the PowerSchool Parent Portal. PowerSchool's Parent Portal provides real-time access for parents to their child's grades, attendance, assignments, and more.
Our KnowledgeBase article on how to access PowerSchool Parent Portal and Getting started with Parent Portal should walk you through the steps to log in to your account. I have provided the links below.
If you do not have access to the link of your district's PowerSchool Parent Portal, I recommend reaching out to your school district who should be able to provide the necessary information.