O'Fallon School District 90 Calendar (2025-2026)
Calendar by educounty.net
| Date | Event |
|---|---|
| Mon, Aug 11 | Teacher Institute Day |
| Tue, Aug 12 | Teacher Institute Day |
| Wed, Aug 13 | First day of School (JH dismiss 1:30; Elementary dismiss 2:15) |
| Mon, Sep 1 | No School - Labor Day |
| Fri, Sep 12 | 1st Qtr. Jr. High Progress Reports Posted / D-F Notices Mailed |
| Wed, Oct 8 & Thur, Oct 9 | Parent-Teacher Conferences 2-4 and 5-8 Regular dismissal for Jr. High 1:45 Dismissal for Elementary |
| Fri, Oct 10 | No School |
| Mon, Oct 13 | No School - Columbus Day |
| Tue, Oct 14 | Teacher Institute Day (No student attendance) |
| Fri, Oct 17 | End of 1st Quarter |
| Fri, Oct 24 | 1st Quarter Report Cards available in Skyward |
| Tue, Nov 11 | No School - Veterans Day |
| Fri, Nov 14 | 2nd Quarter Jr. High Progress Reports Posted / D-F Notices Mailed |
| Wed, Nov 26 - Fri, Nov 28 | No School - Fall Break |
| Fri, Dec 19 | End of 2nd Quarter |
| Mon, Dec 22 - Fri, Jan 2 | No School - Winter Break |
| Mon, Jan 5 | Teacher Institute Day (No student attendance) |
| Tue, Jan 6 | School Resumes |
| Wed, Jan 14 | 2nd Quarter Report Cards available in Skyward |
| Mon, Jan 19 | No School - MLK Day |
| Fri, Jan 30 | 3rd Qtr. Jr. Hgh Progress Reports Posted / D-F Notices Mailed |
| Thu, Feb 12 | Parent-Teacher Conferences 2-4 and 5-8 Full day for Jr. High 1:45 Dismissal for Elementary |
| Fri, Feb 13 | No student attendance - Parent-Teacher Conferences 8-12 |
| Mon, Feb 16 | No School - Presidents' Day |
| Mon, Mar 2 | No school - Casimir Pulaski Day |
| Fri, Mar 6 | End of 3rd Quarter |
| Fri, Mar 13 | 3rd Quarter Report Cards available in Skyward |
| Fri, Mar 27 | 4th Quarter Jr. High Progress Reports Posted / D-F Notices Mailed |
| Wed, Apr 1- Mon, Apr 6 | No School - Spring Break |
| Wed, May 20 | Last Day of Attendance of 4th Quarter, 4th Qtr. Report Cards posted in Skyward |
| Mon, May 25 | Memorial Day |
| Wed, May 28 | Last Day of Attendance (If All Emergency Days Are Used) |
| 3/14/25 | Wednesday Early Dismissals: Junior High: 1:30; Elementary: 2:15 |
O'Fallon School District 90 2025-2026 Schools Calendar FAQs
When is the first day of school in O'Fallon School District 90?
The first day of school is Wednesday, August 13, 2025. (JH dismiss 1:30; Elementary dismiss 2:15) [cite: 1]
When is Spring Break in O'Fallon School District 90?
Spring Break is from Wednesday, April 1, 2026 to Monday, April 6, 2026. [cite: 1]
When is Winter Break in O'Fallon School District 90?
Winter Break is from Monday, December 22, 2025 to Friday, January 2, 2026. [cite: 1]
When is Thanksgiving Break in O'Fallon School District 90?
Thanksgiving Break, also referred to as Fall Break, is from Wednesday, November 26, 2025 to Friday, November 28, 2025. [cite: 1]
When is the last day of school in O'Fallon School District 90?
The last day of school is Wednesday, May 20, 2026. The last day of attendance (if all emergency days are used) is Wednesday, May 28, 2026. [cite: 1]
When are Parent-Teacher Conferences?
Parent-Teacher Conferences are on Wednesday, October 8, 2025 & Thursday, October 9, 2025 (2-4 and 5-8 Regular dismissal for Jr. High 1:45 Dismissal for Elementary) and Thursday, February 12, 2026 (2-4 and 5-8 Full day for Jr. High 1:45 Dismissal for Elementary) and Friday, February 13, 2026 (No student attendance - Parent-Teacher Conferences 8-12). [cite: 1]
Are there any Teacher Institute Days with no student attendance?
Yes, there are Teacher Institute Days on Monday, August 11, 2025, Tuesday, August 12, 2025, Tuesday, October 14, 2025 and Monday, January 5, 2026 [cite: 1]
Calendar Disclaimer
The printable school calendar provided on this page is taken from the official O'Fallon School District 90 Calendar website. Please note that all dates and events are subject to change at the discretion of the school district. For the most accurate and updated information, please refer to the official district website or contact the school helpline.