About Grayslake Middle School

School Hours:
Normal Day: 8:45 am – 3:15 pm
Half Day/Early Dismissal: 8:45 am – 11:45 am

School Office Hours:
7:30 am – 4:00 pm

Attendance Hotline:
(847) 223-3540 – x5103

Conferences:
November 24-25, 2025
March 18-19, 2026

2025-2026 Grading Periods:
August 13 – November 6
November 10 – February 20
February 23 – May 22

Report Cards Released Online:
November 21, 2025
March 6, 2026
May 22, 2026