August 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- First Day of Classes
- Early Release - Middle and High Schools
- Early Release - All Grades (PreK-12)
2026–2027
St. Charles Community Unit School District 303 School Calendar 2026-2027
St. Charles Community Unit School District 303 School Calendar Includes all holidays, breaks, half days, and important dates from August 2026 through May 2027. Dates are manually collected and screened from district-published calendar materials. Printable PDF and Google/Apple Calendar sync options are available below.
School Year Timeline
School Year at a Glance
- First Day of SchoolAug 12, 2026
- Thanksgiving BreakNov 26, 2026 - Nov 27, 2026
- Winter BreakDec 21, 2026 - Jan 1, 2027
- Spring BreakMar 29, 2027 - Apr 2, 2027
- Last Day of SchoolMay 26, 2027
- Today
School year dates
Key Dates
| Event | Date(s) | Status |
|---|---|---|
| First Day of Classes | Middle/high early release; other grades attend | |
| Labor Day Holiday | No classes | |
| Columbus Day Holiday | No classes | |
| Election Day — No Classes; District Offices Closed | No classes | |
| Thanksgiving Break | through | No school |
| Winter Break Calculated from calendar | through | No school |
| Martin Luther King Jr. Day Holiday | No classes | |
| Presidents Day Holiday | No classes | |
| Spring Break Calculated from calendar | through | No school |
| Last Day for Students - If No Emergency Days Are Used | Middle/high early release; other grades attend |
Spot an error? Help us keep this calendar accurate.
Extended Time Off
Extended no-school periods for St. Charles Community Unit School District 303 2026-2027
| Period | Date(s) | Length |
|---|---|---|
| Institute Day - No Students Window | Sep 4 – 7, 2026 Districtwide no-school: Sep 4, 2026 · Sep 7, 2026 Adjacent weekend: Sep 5 – 6, 2026 | 4 days |
| PreK-12 Parent-Teacher Conferences - No Students Window | Oct 8 – 12, 2026 Districtwide no-school: Oct 8 – 9, 2026 · Oct 12, 2026 Adjacent weekend: Oct 10 – 11, 2026 | 5 days |
| Thanksgiving Break Window | Nov 21 – 29, 2026 Districtwide no-school: Nov 23 – 27, 2026 Adjacent weekend: Nov 21 – 22, 2026 · Nov 28 – 29, 2026 | 9 days |
| Winter Break Window | Dec 19, 2026 – Jan 4, 2027 Districtwide no-school: Dec 21, 2026 – Jan 1, 2027 · Jan 4, 2027 Adjacent weekend: Dec 19 – 20, 2026 · Jan 2 – 3, 2027 | 17 days |
| Martin Luther King Jr. Day Holiday Window | Jan 16 – 19, 2027 Districtwide no-school: Jan 18 – 19, 2027 Adjacent weekend: Jan 16 – 17, 2027 | 4 days |
| Presidents Day Holiday Window | Feb 13 – 16, 2027 Districtwide no-school: Feb 15 – 16, 2027 Adjacent weekend: Feb 13 – 14, 2027 | 4 days |
| Spring Break Window | Mar 27 – Apr 4, 2027 Districtwide no-school: Mar 29 – Apr 2, 2027 Adjacent weekend: Mar 27 – 28, 2027 · Apr 3 – 4, 2027 | 9 days |
Planning windows include weekends; they are not counts of school days missed. Conditional and grade-specific closures are excluded.
For students and families
Other Important Dates
| Event | Date(s) |
|---|---|
| PreK-12 Parent-Teacher Conferences - No Students | |
| PreK-8 Conferences and High School In-Service - No Students | |
| End of First Quarter - Middle and High Schools — Middle and high schools | |
| End of First Trimester - Elementary Schools — Elementary schools | |
| End of Second Quarter - Middle and High Schools — Middle and high schools | |
| School Resumes After Winter Break | |
| End of Second Trimester - Elementary Schools — Elementary schools | |
| End of Third Quarter - Middle and High Schools — Middle and high schools | |
| School Resumes After Spring Break | |
| D303 High School Graduation Day — High school graduates and families |
Month by month
Monthly Calendar
Highlighted dates follow the published calendar; grouped or inferred entries are labelled. Today is determined in Central Time (America/Chicago).
- School Day
- Weekend
- Holiday (No School)
- School Break
- First / Last Day
September 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Early Release - Middle and High Schools
- Institute Day - No Students
- Labor Day Holiday
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- Early Release - All Grades (PreK-12)
October 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Early Release - Middle and High Schools
- PreK-12 Parent-Teacher Conferences - No Students
- PreK-8 Conferences and High School In-Service - No Students
- Columbus Day Holiday
- Early Release - Middle and High Schools
- End of First Quarter - Middle and High Schools
- Early Release - Middle and High Schools
- Early Release - All Grades (PreK-12)
November 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Election Day — No Classes; District Offices Closed
- Early Release - Middle and High Schools
- End of First Trimester - Elementary Schools
- Early Release - Middle and High Schools
- Early Release - All Grades (PreK-12)
- No Classes for Students (District Offices Open)
- Thanksgiving Break
December 2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- End of Second Quarter - Middle and High Schools
- Winter Break Calculated from calendar
January 2027
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Winter Break Calculated from calendar
- Teacher Work Day and Pre-K Institute Day - No Students
- School Resumes After Winter Break
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- Martin Luther King Jr. Day Holiday
- School Improvement Day - No Students
- Early Release - Middle and High Schools
- Early Release - All Grades (PreK-12)
February 2027
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- Presidents Day Holiday
- School Improvement Day - No Students
- Early Release - Middle and High Schools
- End of Second Trimester - Elementary Schools
- Early Release - All Grades (PreK-12)
- Parent-Teacher Conferences — Pre-K Off, K–5 Morning Only
- K-12 Institute Day and Pre-K Work Day - No Students
March 2027
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- End of Third Quarter - Middle and High Schools
- Early Release - Middle and High Schools
- Early Release - All Grades (PreK-12)
- Spring Break Calculated from calendar
April 2027
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Spring Break Calculated from calendar
- School Resumes After Spring Break
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- Early Release - All Grades (PreK-12)
May 2027
Sun
Mon
Tue
Wed
Thu
Fri
Sat
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- Early Release - Middle and High Schools
- D303 High School Graduation Day
- Last Day for Students - If No Emergency Days Are Used
About St. Charles Community Unit School District 303
In 2026-27, middle and high schools in District 303 dismiss early on school-day Wednesdays. Eight of those Wednesdays are early-release days for all grades (Pre-K–12): August 26, September 30, October 28 and November 18, 2026; January 27, February 24, March 24 and April 28, 2027. Families should confirm exact dismissal times with their schools.
Students have no classes October 8–9 for parent-teacher conferences and high school in-service, followed by the October 12 holiday. On February 25, 2027, Pre-K has no classes and K–5 attends in the morning only. The February conference schedule does not list a closure for middle or high school students. All students are off February 26.
Election Day, November 3, is a no-school day. Students are also off throughout Thanksgiving week, November 23–27, although district offices remain open November 23–25. Winter break runs December 21, 2026, through January 1, 2027, with a staff day on January 4 and classes resuming January 5. Spring break is March 29–April 2, and students return April 5.
About This Calendar
Data source: Based on the district calendar and supporting sources listed below.
- St. Charles District 303 Official 2026-2027 English Calendar
- District 303 Calendars
- District 303 Inclement Weather Information
Disclaimer: This website is not affiliated with St. Charles Community Unit School District 303, any state education authority, or any official district body. While we strive for accuracy, always verify important dates with the official district website.
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