For the 2026–2027 school year, Deerfield Public Schools District 109 publishes its official academic calendar for Illinois. All dates listed below are sourced from the district's official publications. Verify with Deerfield Public Schools District 109 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Deerfield Public Schools District 109. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Deerfield Public Schools District 109's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
- Holiday - Independence Day (Observed)Jul 3, 2026No School
- New Teacher OrientationAug 5 — Aug 6Teacher Day
- New Teacher OrientationAug 10 — Aug 11Teacher Day
- Teacher Institute DayAug 13, 2026Teacher Day
- Teacher Institute DayAug 14, 2026Teacher Day
- School OpensAug 17, 2026Event
- Half Day Inservice - PMAug 17, 2026Teacher Day
- Legal Holiday - Labor DaySep 7, 2026No School
- Not in AttendanceSep 21, 2026Event
- Legal Holiday - Not in AttendanceOct 12, 2026No School
- Parent Teacher Conferences - PM/EveningOct 22, 2026Teacher Day
- Parent Teacher Conferences - AMOct 23, 2026Teacher Day
- Legal Holiday - Election DayNov 3, 2026No School
- Legal Holiday - Veterans DayNov 11, 2026No School
- Not in AttendanceNov 25, 2026Event
- Legal Holiday - ThanksgivingNov 26, 2026No School
- Not in AttendanceNov 27, 2026Event
- Winter Break BeginsDec 18, 2026No School
- Legal Holiday - ChristmasDec 25, 2026No School
- Legal Holiday - New Year's DayJan 1, 2027No School
- School Resumes for StaffJan 4, 2027Event
- Teacher Institute DayJan 4, 2027Teacher Day
- School Resumes for StudentsJan 5, 2027Event
- Legal Holiday - Dr. King's BirthdayJan 18, 2027No School
- Teacher Institute DayFeb 12, 2027Teacher Day
- Possible Emergency DayFeb 12, 2027Event
- Legal Holiday - Presidents' DayFeb 15, 2027No School
- Possible Emergency DayFeb 15, 2027Event
- Legal Holiday - Casimir Pulaski BirthdayMar 1, 2027No School
- Parent Teacher Conferences - PM/EveningMar 18, 2027Teacher Day
- Parent Teacher Conferences - AMMar 19, 2027Teacher Day
- Spring Break BeginsMar 22, 2027No School
- Not in AttendanceMar 26, 2027Event
- School ResumesMar 30, 2027Event
- Legal Holiday - Memorial DayMay 31, 2027No School
- Last Day without Emergency DaysJun 4, 2027School Closes
- Half Day Inservice - PMJun 4, 2027Teacher Day
- Emergency Days BeginJun 7, 2027Event
- Emergency Days EndJun 11, 2027Event
- Legal Holiday - Juneteenth (Observed)Jun 18, 2027No School
About the District
School Information
Details and contact information for Deerfield Public Schools District 109.
Sources and Checks
Where these dates come from
How the 2026–2027 Deerfield Public Schools District 109 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Deerfield Public Schools District 109 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 Deerfield Public Schools District 109 before booking around a date.
Common Questions
Frequently Asked Questions
Deerfield Public Schools District 109 Calendar 2026–2027 — important dates and answers.
The first day of school in DEERFIELD PUBLIC SCHOOLS DISTRICT 109 for the 2026-2027 school year is August 17, 2026.
Spring Break begins on March 22, 2027. Students are not in attendance on March 26, 2027, and school resumes on March 30, 2027.
Christmas falls during Winter Break. Winter Break begins on December 18, 2026, and Christmas Day is December 25, 2026.
Winter Break begins on December 18, 2026. Staff return on January 4, 2027, and students return on January 5, 2027.
Thanksgiving Day is November 26, 2026. Students are also not in attendance on November 25 and November 27, 2026.
The last day of school without emergency days is June 4, 2027.
Labor Day is September 7, 2026, and is a legal holiday.
Parent Teacher Conferences are scheduled for October 22-23, 2026, and March 18-19, 2027.
Veterans Day is November 11, 2026, and is a legal holiday.
Dr. King's Birthday is observed on January 18, 2027, and is a legal holiday.
Presidents' Day is February 15, 2027, and is a legal holiday.
Memorial Day is May 31, 2027, and is a legal holiday.
Teacher Institute Days are August 13, 2026, August 14, 2026, January 4, 2027, and February 12, 2027.
School resumes for staff on January 4, 2027, and for students on January 5, 2027.
Emergency days begin on June 7, 2027, and end on June 11, 2027. February 12 and February 15, 2027, are also listed as possible emergency days.
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Recently Updated Calendars
Other Illinois school district calendars — recently added or updated.