⚠Unofficial calendar. Always confirm with your district before making plans. Some dates are estimated from nearby districts or past years — those are marked below.
Grayslake CHSD 127
Illinois · 2,581 students · 2026–27 school year
Showing the 2026–27 school year. Past years & forecasts are in our API.
Winter
Dec 21 – Dec 31
Spring
Mar 22 – Mar 26
Last day
Jun 9
Breaks & no-school days
Day off
Starts
Ends
Full Day Professional Development
—
Full Day Professional Development
—
Full Day Professional Development
—
Labor Day
—
Veterans Day
—
No School - Trade Day For Evening Conferences
—
Winter Break
Winter Break
—
Martin Luther King Day
—
No School - Clerical Day
—
Spring Break
No School - Conference Outreach And Teacher Collaboration
—
Memorial Day
—
No School 9Th - 12Th Grade - Gphs Graduation
—
Juneteenth
—
School dayDay offHalf dayEstimated — not yet confirmed by the district