Columbus Day no school
2021-10-11

Grade School Activity Day
2021-10-11 12:00 - 15:00 (America/Chicago)

SAT and PSAT tests
2021-10-13

Senior Retreat Friday
2021-10-15

Lions Cross Country
2021-10-16
At Chicago Catholic League Championship, TBA.

Leo Football vs. Marmion
2021-10-16 13:00 - 15:00 | St. Rita, 7740 S Western, Chicago, IL, United States
SENIOR DAY

Early dismissal at 1:42 p.m.
2021-10-20 13:42, 2021-11-03 13:42

Lions Cross Country
2021-10-23
IHSA Regional, TBA.

Leo Football at Rich Central Stem
2021-10-23 12:30 - 14:30 | Rich Central STEM, 3600 W. 203rd St., Olympia Fields

Open House
2021-10-28 17:30 - 19:00, 2021-11-18 17:30 - 19:00

Parent Club Meeting
2021-10-28 19:00 - 21:00, 2021-11-18 19:00 - 21:00

Lions Cross Country
2021-10-29
IHSA Sectional, TBA.

Leo Football at State Playoffs
2021-10-29 19:00 - 21:00
TBA

Halloween
2021-10-31

School Mass
2021-11-03 08:00 - 09:00, 2021-12-01 08:00 - 09:00

Lions Football at Notre Dame
2021-11-05 19:00 - 21:00 | Notre Dame College Prep, 7655 W. Dempster St., Niles, IL, 60714, United States
First round of Prep Bowl playoff. Kick off at 7 p.m.

Daylight Saving Time ends
2021-11-07

Half day
2021-11-11 11:00

Veterans Day Ceremony
2021-11-11 11:00 - 12:00

Professional development no school
2021-11-12

Early dismissal at 1:42
2021-11-17 13:42, 2021-12-01 13:42

Junior Retreat Friday
2021-11-19

Leo Basketball Black and Orange Game
2021-11-19 16:30 - 18:30 | Leo High School, 7901 South Sangamon, Chicago, IL, 60620, United States

Thanksgiving Day No School
2021-11-25

No School
2021-11-26
