Events

Oct 1 Thu
- Fall Homecoming Week
  Events
- Homecoming Spirit Week 9/28/2026 – 10/2/2026
  Events
- National Principals Month!
  Events
- Girls Volleyball vs Lakeview ( Home) Senior Night 5 PM – 7:30 PM
  Events
Oct 2 Fri
- Homecoming Dance
  Events
- Homecoming Spirit Week 9/28/2026 – 10/2/2026
  Events
- School Custodian Appreciation Day!
  Events
- Girls Tennis vs CPL Championship 9 AM – 2 PM
  Events
- Friday Fall Pep Rally 1:44 PM – 2:20 PM
  Events
Oct 3 Sat
- Boys Soccer vs IC Catholic 2 PM – 4 PM
  Events
- Homecoming Football Game vs Collins-Home ( @Winnemac) 3:30 PM – 5:30 PM
  Events
Oct 5 Mon
- World Teachers Day!
  Events
- Boys Soccer vs Steinmetz 4:30 PM – 7:30 PM
  Events
Oct 6 Tue
- EASA-- East African Student Association Meeting 3:20 PM – 4:30 PM (Rm. 309)
  Events
- Boys Soccer vs Glenbrook South JV/Soph 5 PM – 7 PM
  Events
- Girls Volleyball @ Von Steuben 5 PM – 7:30 PM
  Events
Oct 7 Wed
- 16 in. Softball @ Kelly HS 4:30 PM – 7 PM
  Events
- Girls Tennis vs Brooks 4:45 PM – 6:15 PM
  Events
Oct 8 Thu
- Boys Soccer @ Intrinsic 5 PM – 7 PM
  Events
Oct 10 Sat
- Football vs Richards ( @ Lane ) 3:30 PM – 5:30 PM
  Events
Oct 12 Mon
- No School All
  Events
Oct 13 Tue
- Girls Volleyball CPL Playoffs
  Events
- Girls Flag Football @ Niles West 3 PM – 7 PM
  Events
- EASA-- East African Student Association Meeting 3:20 PM – 4:30 PM (Rm. 309)
  Events
- Friends of Senn Meeting (October) 6 PM – 7:30 PM
  Events
- Friends of Senn Meeting - Location TBD 6:30 PM – 7:30 PM
  Events
Oct 14 Wed
- SYAS School Visit 9 AM – 11 AM
  Events
- SYAS School Visit 12 PM – 2 PM
  Events
- 16 in. Softball @ BOTY 4:30 PM – 7 PM
  Events
- Boys Soccer vs Lycee Francais 5 PM – 6 PM
  Events
Oct 15 Thu
- Girls Volleyball CPL Playoffs
  Events
Oct 16 Fri
- Fall Sports Pictures
  Events
- IHSA Boys Soccer Playoffs ( TIME TBA)
  Events
- Girl Tennis Sectionals 12:30 PM – 4 PM
  Events
- Fall Sports Team/Individual Pictures 2 PM – 4 PM
  Events
Oct 17 Sat
- Girls Tennis Sectionals Day 2
  Events
- Cross Country CPL Championships @ Washington Park 9 AM – 1 PM
  Events
- Girls Swimming Conference Finals 9 AM – 1 PM
  Events
Oct 18 Sun
- Senn Open House 10:30 AM – 1 PM
  Events
Oct 19 Mon
- Yearbook Pictures Grades 9-11 (PE/Lunch) 10/19/2026 – 10/20/2026
  Events
Oct 20 Tue
- Seniors Cap/Gown #1 All Lunch periods
  Events
- Yearbook Pictures Grades 9-11 (PE/Lunch) 10/19/2026 – 10/20/2026
  Events
- EASA-- East African Student Association Meeting 3:20 PM – 4:30 PM (Rm. 309)
  Events
Oct 21 Wed
- Hispanic Hertitage Celebration (2a) 8:49 AM – 9:34 AM
  Events
- SYAS School Visit 9 AM – 11 AM
  Events
- Hispanic Hertitage Celebration (2b) 9:38 AM – 10:23 AM
  Events
- SYAS School Visit 12 PM – 2 PM
  Events
- LSC Meeting Room 115 6 PM – 7 PM
  Events
Oct 23 Fri
- Enf of 1st Quarter
  Events
Oct 24 Sat
- IHSA Regionals Cross Country @ TBD
  Events
- Girls Swimming Sophomore Championships 9 AM – 12 PM
  Events
Oct 25 Sun
- Girls Swimming Varsity Championships 9 AM – 1 PM
  Events
Oct 26 Mon
- IHSA Girls Volleyball Regionals
  Events
Oct 27 Tue
- IHSA Girls Volleyball Regionals
  Events
- EASA-- East African Student Association Meeting 3:20 PM – 4:30 PM (Rm. 309)
  Events
Oct 28 Wed
- SYAS School Visit 9 AM – 11 AM
  Events
- SYAS School Visit 12 PM – 2 PM
  Events
Oct 30 Fri
- Senior Cap/Gown Ordering #1 Lunc Periods
  Events
- Senn Dance Thriller Performance (Cafeteria) 7:45 AM – 8 AM
  Events
Oct 31 Sat
- IHSA Cross Country Sectionals @ TBD
  Events

Events in October 2026
Su	Mo	Tu	We	Th	Fr	Sa
	5 events •••	8 events •••	5 events •••	4 events •••	5 events •••	2 events ••
	2 events ••	3 events •••	2 events ••	One event •		One event •
	One event •	5 events •••	4 events •••	One event •	4 events •••	3 events •••
One event •	One event •	3 events •••	5 events •••		One event •	2 events ••
One event •	One event •	2 events ••	2 events ••		2 events ••	One event •