For the 2026–2027 school year, Southwestern C.u.s.d. #9 publishes its official academic calendar for Illinois. Classes begin Aug 18 and end May 14. All dates listed below are sourced from the district's official publications. Verify with Southwestern C.u.s.d. #9 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Southwestern C.u.s.d. #9. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Southwestern C.u.s.d. #9's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
- On-Line Registration BeginsJul 1, 2026Event
- Registration 12:00 PM–6:30 PM – MS CommonsAug 5, 2026Event
- Full Day Teacher InstituteAug 14, 2026Teacher Day
- Full Day Teacher InstituteAug 17, 2026Teacher Day
- Pre-K Screening 8:00 AM to 11:00 AM – Brighton NorthAug 17, 2026Event
- First Day of Student Attendance (2:05 PM and 2:10 PM Dismissal)Aug 18, 2026School Opens
- First Day of Pre-K AttendanceAug 24, 2026School Opens
- School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 ElementarySep 4, 2026Event
- No School – In Observance of Labor DaySep 7, 2026No School
- No School – In Observance of Columbus DayOct 12, 2026No School
- School Improvement Planning & End of 1st Quarter (42 Days) – Dismissal 12:05 HS/MS and 12:10 ElementaryOct 16, 2026Grading
- 2:05 PM and 2:10 PM Dismissal P/T Conference 3:00–8:00 (5-6 Dinner)Oct 20, 2026Event
- 2:05 PM and 2:10 PM Dismissal P/T Conference 3:00–8:00 (5-6 Dinner)Oct 22, 2026Event
- No School (Compensation Day for P/T Conferences)Oct 23, 2026No School
- School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 ElementaryNov 6, 2026Event
- No School – Veterans DayNov 11, 2026No School
- 2:05 PM and 2:10 PM Dismissal for Thanksgiving BreakNov 24, 2026No School
- School ResumesNov 30, 2026Event
- 2:05 PM and 2:10 PM Dismissal for Christmas Break – End of 2nd Quarter (40 Days)Dec 18, 2026No School
- Teacher InstituteJan 4, 2027Teacher Day
- Students Return from Christmas BreakJan 5, 2027No School
- School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 ElementaryJan 15, 2027Event
- No School – In Observance of Martin Luther King DayJan 18, 2027No School
- School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 ElementaryFeb 12, 2027Event
- No School – In Observance of Presidents DayFeb 15, 2027No School
- School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 ElementaryMar 5, 2027Event
- 2:05 PM and 2:10 PM Dismissal – End of 3rd Quarter (47 Days)Mar 12, 2027Grading
- 2:05 PM and 2:10 PM Dismissal for Easter BreakMar 24, 2027No School
- School ResumesMar 30, 2027Event
- School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 ElementaryApr 16, 2027Event
- School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 ElementaryMay 7, 2027Event
- Pre-K Picnic – Last Day for Pre-K StudentsMay 14, 2027School Closes
- HS Graduation @ 6:00 PMMay 15, 2027Event
- Last Day of School for Students – If No Snow Days UsedMay 20, 2027School Closes
- Inclement Weather Day 1 – If NeededMay 21, 2027Event
- Inclement Weather Day 2 – If NeededMay 24, 2027Event
- Inclement Weather Day 3 – If NeededMay 25, 2027Event
- Inclement Weather Day 4 – If NeededMay 26, 2027Event
- Inclement Weather Day 5 – If Needed / End of 4th Quarter (46 Days)May 27, 2027Grading
- Full Day Teacher InstituteMay 28, 2027Teacher Day
- No School – Memorial DayMay 31, 2027No School
About the District
School Information
Details and contact information for Southwestern C.u.s.d. #9.
Sources and Checks
Where these dates come from
How the 2026–2027 Southwestern C.u.s.d. #9 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Southwestern C.u.s.d. #9 published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against educounty.net.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Southwestern C.u.s.d. #9 before booking around a date.
Common Questions
Frequently Asked Questions
Southwestern C.u.s.d. #9 Calendar 2026–2027 — important dates and answers.
The first day of student attendance in SOUTHWESTERN C.U.S.D. #9 is August 18, 2026.
The calendar lists Easter Break beginning after dismissal on March 24, 2027. School resumes on March 30, 2027.
Christmas Break begins after dismissal on December 18, 2026. Students return from Christmas Break on January 5, 2027.
Winter Break coincides with Christmas Break, beginning after dismissal on December 18, 2026, with students returning on January 5, 2027.
Thanksgiving Break begins after dismissal on November 24, 2026. School resumes on November 30, 2026.
The last day of school for students is scheduled for May 20, 2027, if no snow days are used. If inclement weather days are used, the school year may be extended through May 27, 2027.
There is no school on September 7, 2026, in observance of Labor Day.
There is no school on November 11, 2026, for Veterans Day.
There is no school on January 18, 2027, in observance of Martin Luther King Day.
There is no school on February 15, 2027, in observance of Presidents Day.
High school graduation is scheduled for May 15, 2027, at 6:00 PM.
The Pre-K Picnic and last day for Pre-K students is May 14, 2027.
The first quarter ends on October 16, 2026.
The second quarter ends on December 18, 2026.
The third quarter ends on March 12, 2027.
There is no school on May 31, 2027, in observance of Memorial Day.
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