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SOUTHWESTERN C.U.S.D. #9 IL Calendar 26-27

  • 2026/27
  • Illinois
  • 4 teacher days

The SOUTHWESTERN C.U.S.D. #9 2026–27 school year runs from Aug 18, 2026 to May 14, 2027. Breaks include Thanksgiving break Nov 24 and winter break Dec 18. The table below lists all teacher workdays and holidays. Download or print the calendar, or read the FAQs.

School year starts Tue, Aug 18, 2026 First Day of Student Attendance (2:05 PM and 2:10 PM Dismissal)
School year ends Thu, May 20, 2027 Last Day of School for Students – If No Snow Days Used
Next key date Tue, Aug 18, 2026 Counts down once the school year is under way

SOUTHWESTERN C.U.S.D. #9 2026-27 calendar

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SOUTHWESTERN C.U.S.D. #9 school year calendar

Every published date for 2026–27, colour-coded by what happens that day.

  • First day of school
  • Last day of school
  • Holiday - school closed
  • Break / vacation
  • Teacher / professional day
  • Parent-teacher conference
  • Grading period / report cards
  • Graduation
  • Weather make-up day
  • Other scheduled date

August 2026

  • Aug 5, 2026 — Registration 12:00 PM–6:30 PM – MS Commons
  • Aug 14, 2026 — Full Day Teacher Institute
  • Aug 17, 2026 — Full Day Teacher Institute
  • Aug 17, 2026 — Pre-K Screening 8:00 AM to 11:00 AM – Brighton North
  • Aug 18, 2026 — First Day of Student Attendance (2:05 PM and 2:10 PM Dismissal)

September 2026

  • Sep 4, 2026 — School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
  • Sep 7, 2026 — No School – In Observance of Labor Day

October 2026

  • Oct 12, 2026 — No School – In Observance of Columbus Day
  • Oct 16, 2026 — School Improvement Planning & End of 1st Quarter (42 Days) – Dismissal 12:05 HS/MS and 12:10 Elementary
  • Oct 20, 2026 — 2:05 PM and 2:10 PM Dismissal P/T Conference 3:00–8:00 (5-6 Dinner)
  • Oct 22, 2026 — 2:05 PM and 2:10 PM Dismissal P/T Conference 3:00–8:00 (5-6 Dinner)
  • Oct 23, 2026 — No School (Compensation Day for P/T Conferences)

November 2026

  • Nov 6, 2026 — School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
  • Nov 11, 2026 — No School – Veterans Day
  • Nov 24, 2026 — 2:05 PM and 2:10 PM Dismissal for Thanksgiving Break
  • Nov 30, 2026 — School Resumes

December 2026

  • Dec 18, 2026 — 2:05 PM and 2:10 PM Dismissal for Christmas Break – End of 2nd Quarter (40 Days)

January 2027

  • Jan 4, 2027 — Teacher Institute
  • Jan 5, 2027 — Students Return from Christmas Break
  • Jan 15, 2027 — School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
  • Jan 18, 2027 — No School – In Observance of Martin Luther King Day

February 2027

  • Feb 12, 2027 — School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
  • Feb 15, 2027 — No School – In Observance of Presidents Day

March 2027

  • Mar 5, 2027 — School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
  • Mar 12, 2027 — 2:05 PM and 2:10 PM Dismissal – End of 3rd Quarter (47 Days)
  • Mar 24, 2027 — 2:05 PM and 2:10 PM Dismissal for Easter Break
  • Mar 30, 2027 — School Resumes

April 2027

  • Apr 16, 2027 — School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary

May 2027

  • May 7, 2027 — School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
  • May 14, 2027 — Pre-K Picnic – Last Day for Pre-K Students
  • May 15, 2027 — HS Graduation @ 6:00 PM
  • May 20, 2027 — Last Day of School for Students – If No Snow Days Used
  • May 21, 2027 — Inclement Weather Day 1 – If Needed

June 2027

July 2027

SOUTHWESTERN C.U.S.D. #9 teacher and staff days 2026/27

Students normally stay home on these days. Confirm with the district before making plans.

  • Aug 14, 2026 Full Day Teacher Institute District source
  • Aug 17, 2026 Full Day Teacher Institute District source
  • Jan 4, 2027 Teacher Institute District source
  • May 28, 2027 Full Day Teacher Institute District source

SOUTHWESTERN C.U.S.D. #9 breaks and holidays

School is closed to students on these dates.

  • Sep 7, 2026 No School – In Observance of Labor Day Holiday
  • Oct 12, 2026 No School – In Observance of Columbus Day Holiday
  • Nov 11, 2026 No School – Veterans Day Holiday
  • Nov 24, 2026 2:05 PM and 2:10 PM Dismissal for Thanksgiving Break Break
  • Dec 18, 2026 2:05 PM and 2:10 PM Dismissal for Christmas Break – End of 2nd Quarter (40 Days) Break
  • Jan 18, 2027 No School – In Observance of Martin Luther King Day Holiday
  • Feb 15, 2027 No School – In Observance of Presidents Day Holiday
  • Mar 24, 2027 2:05 PM and 2:10 PM Dismissal for Easter Break Break
  • May 31, 2027 No School – Memorial Day Holiday

Your checked 2026/27 SOUTHWESTERN C.U.S.D. #9 planning calendar

How these dates are put together, and what to double-check before you book anything.

Useful now41 published dates for the 2026–27 school year, laid out month by month.
CheckedTaken from the district’s own published calendar, not retyped from memory.
Kept currentLast updated August 11, 2026.
Full term dates table

SOUTHWESTERN C.U.S.D. #9 2026–27 calendar dates

DateEvent
Jul 1, 2026On-Line Registration Begins
Aug 5, 2026Registration 12:00 PM–6:30 PM – MS Commons
Aug 14, 2026Full Day Teacher Institute
Aug 17, 2026Full Day Teacher Institute
Aug 17, 2026Pre-K Screening 8:00 AM to 11:00 AM – Brighton North
Aug 18, 2026First Day of Student Attendance (2:05 PM and 2:10 PM Dismissal)
Aug 24, 2026First Day of Pre-K Attendance
Sep 4, 2026School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
Sep 7, 2026No School – In Observance of Labor Day
Oct 12, 2026No School – In Observance of Columbus Day
Oct 16, 2026School Improvement Planning & End of 1st Quarter (42 Days) – Dismissal 12:05 HS/MS and 12:10 Elementary
Oct 20, 20262:05 PM and 2:10 PM Dismissal P/T Conference 3:00–8:00 (5-6 Dinner)
Oct 22, 20262:05 PM and 2:10 PM Dismissal P/T Conference 3:00–8:00 (5-6 Dinner)
Oct 23, 2026No School (Compensation Day for P/T Conferences)
Nov 6, 2026School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
Nov 11, 2026No School – Veterans Day
Nov 24, 20262:05 PM and 2:10 PM Dismissal for Thanksgiving Break
Nov 30, 2026School Resumes
Dec 18, 20262:05 PM and 2:10 PM Dismissal for Christmas Break – End of 2nd Quarter (40 Days)
Jan 4, 2027Teacher Institute
Jan 5, 2027Students Return from Christmas Break
Jan 15, 2027School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
Jan 18, 2027No School – In Observance of Martin Luther King Day
Feb 12, 2027School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
Feb 15, 2027No School – In Observance of Presidents Day
Mar 5, 2027School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
Mar 12, 20272:05 PM and 2:10 PM Dismissal – End of 3rd Quarter (47 Days)
Mar 24, 20272:05 PM and 2:10 PM Dismissal for Easter Break
Mar 30, 2027School Resumes
Apr 16, 2027School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
May 7, 2027School Improvement Planning – Dismissal 12:05 HS/MS and 12:10 Elementary
May 14, 2027Pre-K Picnic – Last Day for Pre-K Students
May 15, 2027HS Graduation @ 6:00 PM
May 20, 2027Last Day of School for Students – If No Snow Days Used
May 21, 2027Inclement Weather Day 1 – If Needed
May 24, 2027Inclement Weather Day 2 – If Needed
May 25, 2027Inclement Weather Day 3 – If Needed
May 26, 2027Inclement Weather Day 4 – If Needed
May 27, 2027Inclement Weather Day 5 – If Needed / End of 4th Quarter (46 Days)
May 28, 2027Full Day Teacher Institute
May 31, 2027No School – Memorial Day

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SOUTHWESTERN C.U.S.D. #9 calendar FAQs

When is the first day of school in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
The first day of student attendance in SOUTHWESTERN C.U.S.D. #9 is August 18, 2026.
When is spring break in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
The calendar lists Easter Break beginning after dismissal on March 24, 2027. School resumes on March 30, 2027.
When is Christmas break in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
Christmas Break begins after dismissal on December 18, 2026. Students return from Christmas Break on January 5, 2027.
When is winter break in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
Winter Break coincides with Christmas Break, beginning after dismissal on December 18, 2026, with students returning on January 5, 2027.
When is Thanksgiving break in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
Thanksgiving Break begins after dismissal on November 24, 2026. School resumes on November 30, 2026.
When is the last day of school in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
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.
When is Labor Day break in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
There is no school on September 7, 2026, in observance of Labor Day.
When is Veterans Day in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
There is no school on November 11, 2026, for Veterans Day.
When is Martin Luther King Jr. Day in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
There is no school on January 18, 2027, in observance of Martin Luther King Day.
When is Presidents Day in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
There is no school on February 15, 2027, in observance of Presidents Day.
When is high school graduation in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
High school graduation is scheduled for May 15, 2027, at 6:00 PM.
When is the last day for Pre-K students in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
The Pre-K Picnic and last day for Pre-K students is May 14, 2027.
When does the first quarter end in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
The first quarter ends on October 16, 2026.
When does the second quarter end in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
The second quarter ends on December 18, 2026.
When does the third quarter end in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
The third quarter ends on March 12, 2027.
When is Memorial Day in SOUTHWESTERN C.U.S.D. #9 for 2026-2027?
There is no school on May 31, 2027, in observance of Memorial Day.

Dates can change after publication. Read our calendar disclaimer.