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School Open
Dismissal: 3:30 PM
Next 7 Days
April 2026
Coming Up
School Breaks
Holidays (No School)
The Cook County School District 104 school calendar for the 2025-26 school year runs from Thursday, August 21, 2025 to Wednesday, June 3, 2026 in Illinois.
- •3 scheduled breaks and 7 holidays throughout the year
- •Spring break: Mar 24 – Mar 28
- •Winter break: Dec 23 – Jan 5
Cook County School District 104 starts school 168 days earlier than most Illinois districts.
Download the iCal file above to sync all Cook County School District 104 dates with your phone or computer.
Frequently Asked Questions
Is Cook County School District 104 school open today?
Yes, Cook County School District 104 is open today. Check the weekly calendar above for upcoming school days and closures.
When is the next day off for Cook County School District 104?
The next day off is Tuesday, May 26, 2026 for Memorial Day.
When is the first day of school for Cook County School District 104?
The first day of school for Cook County School District 104 in 2025-26 is Thursday, August 21, 2025.
When is the last day of school for Cook County School District 104?
The last day of school for Cook County School District 104 in 2025-26 is Wednesday, June 3, 2026.
When is spring break for Cook County School District 104?
Spring break for Cook County School District 104 is Tuesday, March 24, 2026 to Saturday, March 28, 2026.
When is winter break for Cook County School District 104?
Winter break for Cook County School District 104 is Tuesday, December 23, 2025 to Monday, January 5, 2026.
When do students go back to school after winter break?
Students in Cook County School District 104 return to school after winter break on Tuesday, January 6, 2026. Winter break ends on Monday, January 5, 2026.
When is Thanksgiving break for Cook County School District 104?
Thanksgiving break for Cook County School District 104 is Tuesday, November 25, 2025 to Saturday, November 29, 2025.
How do I add Cook County School District 104 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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Last updated: December 19, 2025