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Official School Calendar for Academic Year 2026–2027
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O’Fallon School District 90 Calendar (2026-2027)
Calendar by educounty.net
| Date | Event |
|---|---|
| Aug 10, 2026 | Teacher Institute Day |
| Aug 11, 2026 | Teacher Institute Day |
| Aug 12, 2026 | First Day of School |
| Sep 7, 2026 | No School – Labor Day |
| Sep 11, 2026 | 1st Quarter Jr. High Progress Reports Posted / D-F Notices Mailed |
| Oct 7-8, 2026 | Parent-Teacher Conferences |
| Oct 8, 2026 | End of 1st Quarter |
| Oct 9, 2026 | Teacher Institute Day (No student attendance) |
| Oct 13, 2026 | No School – Columbus Day |
| Oct 14, 2026 | No School |
| Oct 16, 2026 | 1st Quarter Report Cards available in Skyward |
| Nov 11, 2026 | No School – Veterans Day |
| Nov 13, 2026 | 2nd Quarter Jr. High Progress Reports Posted / D-F Notices Mailed |
| Nov 25-27, 2026 | No School – Fall Break |
| Dec 19, 2026 | End of 2nd Quarter |
| Dec 21, 2026 – Jan 1, 2027 | No School – Winter Break |
| Jan 4, 2027 | Teacher Institute Day (No student attendance) |
| Jan 5, 2027 | School Resumes |
| Jan 13, 2027 | 2nd Quarter Report Cards available in Skyward |
| Jan 18, 2027 | No School – MLK Day |
| Jan 29, 2027 | 3rd Quarter Jr. High Progress Reports Posted / D-F Notices Mailed |
| Feb 11, 2027 | Parent-Teacher Conferences |
| Feb 12, 2027 | No student attendance – Parent-Teacher Conferences |
| Feb 15, 2027 | No School – Presidents’ Day |
| Mar 5, 2027 | End of 3rd Quarter |
| Mar 12, 2027 | 3rd Quarter Report Cards available in Skyward |
| Mar 25, 2027 | 4th Quarter Jr. High Progress Reports Posted / D-F Notices Mailed |
| Mar 26 – Apr 2, 2027 | No School – Spring Break |
| May 20, 2027 | Last Day of Attendance of 4th Quarter |
| May 27, 2027 | Last Day of Attendance (If All Emergency Days Are Used) |
| May 31, 2027 | Memorial Day |
O’Fallon School District 90 Calendar 2026-2027 FAQs
When is the first day of school in O’Fallon School District 90 2026-2027?
The first day of school is August 12, 2026.
When is spring break in O’Fallon School District 90 2026-2027?
Spring break is from March 26, 2027 to April 2, 2027.
When is Christmas break in O’Fallon School District 90 2026-2027?
Christmas break falls within the winter break from December 21, 2026 to January 1, 2027.
When is winter break in O’Fallon School District 90 2026-2027?
Winter break is from December 21, 2026 through January 1, 2027.
When is Thanksgiving break in O’Fallon School District 90 2026-2027?
Thanksgiving (Fall Break) is from November 25 through November 27, 2026.
When is the last day of school in O’Fallon School District 90 2026-2027?
The last day of school is May 20, 2027. If emergency days are used, it may extend to May 27, 2027.
When does school resume after winter break in O’Fallon School District 90 2026-2027?
School resumes on January 5, 2027.
When is Labor Day holiday in O’Fallon School District 90 2026-2027?
Labor Day is observed on September 7, 2026, and there is no school.
When is Memorial Day in O’Fallon School District 90 2026-2027?
Memorial Day is on May 31, 2027.
When are parent-teacher conferences in O’Fallon School District 90 2026-2027?
Parent-teacher conferences are scheduled on October 7-8, 2026 and February 11-12, 2027.
Calendar Disclaimer
Dates are sourced from the official O'Fallon School District OF90 Calendar 26-27 [PDF] website. Dates may change at the discretion of the district. Always verify with the official school website for the latest updates.
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