Share with Parents
Help other parents find this calendar
School Break
Spring Break
Apr 1 - Apr 6
Next 7 Days
5 days offApril 2026
Coming Up
School Breaks
Holidays (No School)
The O'Fallon Community Consolidated School District 90 school calendar for the 2025-26 school year runs from Wednesday, August 13, 2025 to Wednesday, May 20, 2026 in Illinois.
- •3 scheduled breaks and 7 holidays throughout the year
- •Spring break: Apr 1 – Apr 6
- •Winter break: Dec 22 – Jan 2
O'Fallon Community Consolidated School District 90 starts school 176 days earlier than most Illinois districts. Winter break matches the most common Illinois schedule, starting 12/22.
Download the iCal file above to sync all O'Fallon Community Consolidated School District 90 dates with your phone or computer.
Frequently Asked Questions
Is O'Fallon Community Consolidated School District 90 school open today?
No, O'Fallon Community Consolidated School District 90 is currently on Spring Break (Apr 1 - Apr 6).
When is the next day off for O'Fallon Community Consolidated School District 90?
The next day off is Monday, May 25, 2026 for Memorial Day.
When is the first day of school for O'Fallon Community Consolidated School District 90?
The first day of school for O'Fallon Community Consolidated School District 90 in 2025-26 is Wednesday, August 13, 2025.
When is the last day of school for O'Fallon Community Consolidated School District 90?
The last day of school for O'Fallon Community Consolidated School District 90 in 2025-26 is Wednesday, May 20, 2026.
When is spring break for O'Fallon Community Consolidated School District 90?
Spring break for O'Fallon Community Consolidated School District 90 is Wednesday, April 1, 2026 to Monday, April 6, 2026.
When is winter break for O'Fallon Community Consolidated School District 90?
Winter break for O'Fallon Community Consolidated School District 90 is Monday, December 22, 2025 to Friday, January 2, 2026.
When do students go back to school after winter break?
Students in O'Fallon Community Consolidated School District 90 return to school after winter break on Monday, January 5, 2026. Winter break ends on Friday, January 2, 2026.
When is Thanksgiving break for O'Fallon Community Consolidated School District 90?
Thanksgiving break for O'Fallon Community Consolidated School District 90 is Wednesday, November 26, 2025 to Friday, November 28, 2025.
How do I add O'Fallon Community Consolidated School District 90 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.
Get Calendar Alerts
We'll email you when O'Fallon Community Consolidated School District 90 updates their calendar.
Other Illinois Districts
Last updated: December 19, 2025
Source: O'Fallon Community Consolidated School District 90 Official Calendar