2026-27 Community High School District 155 Calendar

The 2026-27 Community High School District 155 Calendar (Crystal Lake, IL) was converted to calendar events, saving everyone the duplicate effort of creating calendar events manually.

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August 2026

D155: Distribution Days
Wed, Aug 5, 2026 - Thu, Aug 6, 2026
Distribution days
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Institute Day - No Classes
Mon, Aug 10, 2026 - Tue, Aug 11, 2026
Institute Day - No Classes
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: First Official Day of 2026-2027 School Year, First Day of School - All Students
Wed, Aug 12, 2026
First Official Day of 2026-2027 School Year; First Day of School - ALL STUDENTS
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Aug 17, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Aug 24, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Aug 31, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

September 2026

D155: No School, Labor Day
Mon, Sep 7, 2026
Labor Day - No School
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Parents' Night/Open House - Early Release
Thu, Sep 10, 2026
Parents' Night/Open House - Early Release
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Sep 14, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Sep 21, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Sep 28, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

October 2026

D155: Late Start Monday
Mon, Oct 5, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: No School, Columbus Day
Mon, Oct 12, 2026
Columbus Day - No School
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Oct 19, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Oct 26, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

November 2026

D155: Late Start Monday
Mon, Nov 2, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: No School, Election Day
Tue, Nov 3, 2026
Election Day - No School
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Nov 9, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Nov 16, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Nov 23, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: No School, Thanksgiving Holiday
Wed, Nov 25, 2026 - Fri, Nov 27, 2026
Thanksgiving Holiday - No School
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Nov 30, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

December 2026

D155: Late Start Monday
Mon, Dec 7, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Dec 14, 2026
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Final Exams
Thu, Dec 17, 2026 - Fri, Dec 18, 2026
Final Exams - Final Exam Schedule. If a snow day occurs on a first-semester final examination day, the exam make-up will be rescheduled for January 4-5, 2027.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Last Day of School in 2026; End of First Semester
Fri, Dec 18, 2026
Last Day of School in 2026; End of First Semester
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: No School, Winter Break
Mon, Dec 21, 2026 - Fri, Jan 1, 2027
Winter Break - No School
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

January 2027

D155: No School for Students, Institute Day - No Classes
Mon, Jan 4, 2027 - Tue, Jan 5, 2027
Institute Day - No Classes
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: First Day of School in 2027; Start of Second Semester
Wed, Jan 6, 2027
First Day of School in 2027; Start of Second Semester
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Jan 11, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: No School, Martin Luther King Day
Mon, Jan 18, 2027
Martin Luther King Day - No School
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Jan 25, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

February 2027

D155: Late Start Monday
Mon, Feb 1, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Feb 8, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: No School, President's Day
Mon, Feb 15, 2027
President's Day - No School
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Feb 22, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

March 2027

D155: Late Start Monday
Mon, Mar 1, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Mar 8, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Mar 15, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Mar 22, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: No School for Students, Day of Non-Attendance
Fri, Mar 26, 2027
Day of Non-Attendance
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: No School, Spring Break
Mon, Mar 29, 2027 - Fri, Apr 2, 2027
Spring Break - No School
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

April 2027

D155: Late Start Monday
Mon, Apr 5, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Apr 12, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Apr 19, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, Apr 26, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: School Improvement Day - Early Release
Fri, Apr 30, 2027
School Improvement Day - Early Release
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.

May 2027

D155: Late Start Monday
Mon, May 3, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, May 10, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Graduation - All Schools
Sat, May 15, 2027
Graduation - All Schools - 10:00 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Late Start Monday
Mon, May 17, 2027
Every Monday school is in session will be a “Late Start Monday”, with classes beginning at 8:10 a.m.
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Final Exams
Wed, May 19, 2027 - Thu, May 20, 2027
Final Exams - Final Exam Schedule
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Last Day of School (If No Emergency Days Used)
Thu, May 20, 2027
Last Day of School (if no Emergency Days used)
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.
D155: Last Day of School (If All Emergency Days Used)
Thu, May 27, 2027
Last Day of School (if all Emergency Days used)
Created from the 2026-27 Community High School District 155 Calendar, Crystal Lake, IL.