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School Open
Dismissal: 3:30 PM
Next 7 Days
1 day offApril 2026
Coming Up
1 this weekSchool Breaks
Holidays (No School)
The Mundelein Consolidated High School District 120 school calendar for the 2025-26 school year runs from Wednesday, August 13, 2025 to Thursday, May 21, 2026 in Illinois.
- •3 scheduled breaks and 7 holidays throughout the year
- •Spring break: Mar 23 – Mar 27
- •Winter break: Dec 22 – Jan 2
Mundelein Consolidated High School District 120 starts school 176 days earlier than most Illinois districts. Winter break matches the most common Illinois schedule, starting 12/22. Spring break aligns with the most common Illinois schedule.
Download the iCal file above to sync all Mundelein Consolidated High School District 120 dates with your phone or computer.
Frequently Asked Questions
Is Mundelein Consolidated High School District 120 school open today?
Yes, Mundelein Consolidated High School District 120 is open today. Check the weekly calendar above for upcoming school days and closures.
When is the next day off for Mundelein Consolidated High School District 120?
The next day off is Friday, April 3, 2026 for Good Friday.
When is the first day of school for Mundelein Consolidated High School District 120?
The first day of school for Mundelein Consolidated High School District 120 in 2025-26 is Wednesday, August 13, 2025.
When is the last day of school for Mundelein Consolidated High School District 120?
The last day of school for Mundelein Consolidated High School District 120 in 2025-26 is Thursday, May 21, 2026.
When is spring break for Mundelein Consolidated High School District 120?
Spring break for Mundelein Consolidated High School District 120 is Monday, March 23, 2026 to Friday, March 27, 2026.
When is winter break for Mundelein Consolidated High School District 120?
Winter break for Mundelein Consolidated High School District 120 is Monday, December 22, 2025 to Friday, January 2, 2026.
When do students go back to school after winter break?
Students in Mundelein Consolidated High School District 120 return to school after winter break on Monday, January 5, 2026. Winter break ends on Friday, January 2, 2026.
When is Thanksgiving break for Mundelein Consolidated High School District 120?
Thanksgiving break for Mundelein Consolidated High School District 120 is Wednesday, November 26, 2025 to Friday, November 28, 2025.
How do I add Mundelein Consolidated High School District 120 calendar to my phone?
Click the "Add to Calendar" button at the top of this page to download the iCal (.ics) file. Then:
iPhone/iPad: Tap the downloaded file, then tap "Add All" to add events to your Calendar app.
Android: Open the file with Google Calendar, review the events, and tap "Import".
Google Calendar (web): Go to Settings → Import & Export → Select the .ics file → Import.
Outlook: Double-click the file or drag it into your Outlook calendar.
Apple Calendar (Mac): Double-click the file or go to File → Import → select the .ics file.
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Last updated: December 19, 2025
Source: Mundelein Consolidated High School District 120 Official Calendar