Trunk or Treat

1560 N. Green Mount Rd., O'Fallon, IL, United States, Illinois 62269 17 Oct 2026

Annual Trunk Or Treat Spectacular

1268 Central Park Dr, O'Fallon, IL, United States, Illinois 62269 24 Oct 2026

CHALK IT UP TO ART! Chalk Contest - 6th Annual

102 S. Vine Street , O'Fallon, IL, United States, Illinois 62269 17 Oct 2026

Trunk or Treat | Newbold Toyota + BMW

1282 Central Park Dr, O'Fallon, IL 30 Oct 2026

Caffeine and Chrome - Gateway Classic Cars of St. Louis

Gateway Classic Cars of St. Louis 31 Oct 2026

Lil Sister - Halloween Party @ 1st Street Lounge (O'Fallon)

1st Street Lounge 31 Oct 2026

2026 Downtown District Halloween Pub Crawl

116 E. First Street, O'Fallon, IL, United States, Illinois 24 Oct 2026

OTHS Band Boosters Art and Craft Fair

OTHS - O'Fallon Township High School District 203 7 Nov 2026

Treats in Trunks @ Dogwood Social House

Dogwood Social House O'Fallon IL 31 Oct 2026

Fantastic Fall Fest

1428 E 3rd St, O'Fallon, IL 62269, United States 7 Nov 2026

Fireside Worship Night

1111 E US Highway 50, O'Fallon, IL 16 Oct 2026

JUNE'S FALL FEST 🍂

June's Breakfast + Patio 17 Oct 2026

One Room. Two Ways.

1238 Central Park Dr 17 Oct 2026

Live Music by Chad Steven Stafford

531 W Hwy 50, O'Fallon, IL 62269 16 Oct 2026

Concert Series Presents Bradley University Chorale and OTHS Choirs

520 E US Highway 50, O'Fallon, IL, United States, Illinois 62269 16 Oct 2026

Columbus Day Pop Up Camps

O'Fallon Sports Park 12 Oct 2026

BRUNCH LIVE MUSIC @ June's

June's Breakfast + Patio 9 May 2026

2026 Running Toward Peace 5k Charity Run/Walk

O'Fallon Police Department 10 Oct 2026

🎃 Gears and Ghouls! 🚗👻

1206 Central Park Dr., O'Fallon, IL 31 Oct 2026

New member brunch

520 E US Highway 50, O'Fallon, IL, United States, Illinois 62269 18 Oct 2026