School calendars can be a great resource for families to have on hand while they’re planning their year. From holiday breaks to professional development days, here is the 2024-2025 school calendar as approved by the Community High School District 99.
Important 2024-2025 school year dates
A few key dates you’ll want to bookmark:
- First Day of School: Aug. 16, 2024
- Winter Break: Dec. 20, 2024–Jan. 3, 2025
- Spring Break: March 28-April 4, 2025
- Last Day of School: May 23, 2025
See the full calendar below or visit csd99.org.
2024-2025 Community High School District 99 Calendar
August 2024
- First Day of School: Aug. 16, 2024
September 2024
- No School (Labor Day): Sep. 2, 2024
October 2024
- No School (Teacher Conferences): Oct. 6, 2024
- No School: Oct. 14, 2024
November 2024
- No School (Election Day): Nov. 5, 2024
- No School (Thanksgiving Break): Nov. 27-29, 2024
December 2024
- No School (Winter Break): Dec. 20, 2024–Jan. 3, 2025
January 2025
- No School (Teacher Institute): Jan. 6, 2025
- No School (Martin Luther King’s Birthday): Jan. 20, 2025
February 2025
- No School (Presidents’ Day): Feb. 17, 2025
- No School (County Institute Day): Feb. 28, 2025
March 2025
- No School (Spring Break): March 28-April 4, 2025
April 2025
- No School: April 18, 2025
May 2025
- Graduation: May 18, 2025
- Last Day of School: May 23, 2025
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