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School Open
Dismissal: 3:30 PM
Next 7 Days
October 2026
Coming Up
School Breaks
Holidays (No School)
The Prospect Heights School District 23 school calendar for the 2026-27 school year runs from Wednesday, August 19, 2026 to Friday, June 4, 2027 in Illinois.
- •3 scheduled breaks and 5 holidays throughout the year
- •Spring break: Mar 22 – Mar 26
- •Winter break: Dec 21 – Jan 5
Prospect Heights School District 23 starts school 195 days later than most Illinois districts. Winter break starts 364 days later than the most common Illinois schedule.
Download the iCal file above to sync all Prospect Heights School District 23 dates with your phone or computer.
Frequently Asked Questions
Is Prospect Heights School District 23 school open today?
Yes, Prospect Heights School District 23 is open today. Check the weekly calendar above for upcoming school days and closures.
When is the next day off for Prospect Heights School District 23?
The next day off is Tuesday, November 3, 2026 for Election Day.
When is the first day of school for Prospect Heights School District 23?
The first day of school for Prospect Heights School District 23 in 2026-27 is Wednesday, August 19, 2026.
When is the last day of school for Prospect Heights School District 23?
The last day of school for Prospect Heights School District 23 in 2026-27 is Friday, June 4, 2027.
When is spring break for Prospect Heights School District 23?
Spring break for Prospect Heights School District 23 is Monday, March 22, 2027 to Friday, March 26, 2027.
When is winter break for Prospect Heights School District 23?
Winter break for Prospect Heights School District 23 is Monday, December 21, 2026 to Tuesday, January 5, 2027.
When do students go back to school after winter break?
Students in Prospect Heights School District 23 return to school after winter break on Wednesday, January 6, 2027. Winter break ends on Tuesday, January 5, 2027.
When is Thanksgiving break for Prospect Heights School District 23?
Thanksgiving break for Prospect Heights School District 23 is Monday, November 23, 2026 to Friday, November 27, 2026.
How do I add Prospect Heights School District 23 calendar to my phone?
Click the "Add to Calendar" button at the top of this page to download the iCal (.ics) file. Then:
iPhone/iPad: Tap the downloaded file, then tap "Add All" to add events to your Calendar app.
Android: Open the file with Google Calendar, review the events, and tap "Import".
Google Calendar (web): Go to Settings → Import & Export → Select the .ics file → Import.
Outlook: Double-click the file or drag it into your Outlook calendar.
Apple Calendar (Mac): Double-click the file or go to File → Import → select the .ics file.
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Other Illinois Districts
Last updated: December 19, 2025
Source: Prospect Heights School District 23 Official Calendar