Trunk or Treat Sat, 17 Oct at 11:00 am 1560 N. Green Mount Rd., O'Fallon, IL, United States, Illinois 62269 HALLOWEEN
Annual Trunk Or Treat Spectacular Sat, 24 Oct at 01:00 pm 1268 Central Park Dr, O'Fallon, IL, United States, Illinois 62269 CONTESTS
Caffeine and Chrome - Gateway Classic Cars of St. Louis Sat, 31 Oct at 09:00 am Gateway Classic Cars of St. Louis FREE TRUNK-OR-TREAT
CHALK IT UP TO ART! Chalk Contest - 6th Annual Sat, 17 Oct at 08:00 am 102 S. Vine Street , O'Fallon, IL, United States, Illinois 62269 ART
Treats in Trunks @ Dogwood Social House Sat, 31 Oct at 12:00 pm Dogwood Social House O'Fallon IL TRUNK-OR-TREAT
OTHS Band Boosters Art and Craft Fair Sat, 07 Nov at 09:00 am OTHS - O'Fallon Township High School District 203 ART
Lil Sister - Halloween Party @ 1st Street Lounge (O'Fallon) Sat, 31 Oct at 08:00 pm 1st Street Lounge HALLOWEEN-PARTIES
Fantastic Fall Fest Sat, 07 Nov at 02:00 pm 1428 E 3rd St, O'Fallon, IL 62269, United States FESTIVALS
2026 Downtown District Halloween Pub Crawl Sat, 24 Oct at 05:00 pm 116 E. First Street, O'Fallon, IL, United States, Illinois PARTIES
New member brunch Sun, 18 Oct at 11:45 am 520 E US Highway 50, O'Fallon, IL, United States, Illinois 62269 BRUNCH
The Grief Resilience Series-Part 2 Wed, 04 Nov at 06:00 pm 120 Civic Plz, O'Fallon, IL, United States, Illinois 62269
Squishy Trading Event Fri, 06 Nov at 06:00 pm 411 E. 5th St., O'Fallon, IL, United States, Illinois 62269 BUSINESS
Caffeine and Chrome – Gateway Classic Cars Sat, 31 Oct at 09:00 am 1237 Central Park Dr, O'Fallon, IL, United States, Illinois 62269
Reformation & Root Beer Sunday Sun, 25 Oct at 10:00 am 520 E US Highway 50, O'Fallon, IL, United States, Illinois 62269
Beekeeping with David Tue, 20 Oct at 06:30 pm 120 Civic Plz, O'Fallon, IL, United States, Illinois 62269
City of O'Fallon - Land Use Code Update Open House Thu, 22 Oct at 04:00 pm 255 S. Lincoln Avenue, O'Fallon, IL, United States, Illinois 62269
The Power of One Small Brave Decision - O'Fallon Mon, 30 Nov at 11:30 am Bella Milano O'Fallon FREE FITNESS
Family Fall Festival Sat, 07 Nov at 02:00 pm 520 E US Highway 50, O'Fallon, IL, United States, Illinois 62269 FESTIVALS
45th Annual O'Fallon Panthers Band Boosters "Art and Craft Fair" || Quirks and Giggles // Day 2 Sun, 08 Nov at 10:00 am 600 S Smiley St, O'Fallon, IL 62269-2316, United States MUSIC
Become a Foster Parent with LCFS - O'Fallon, Illinois (In-Person) Tue, 01 Dec at 06:00 pm 711 Insight Ave FREE FITNESS
October PTO Meeting Tue, 20 Oct at 06:30 pm 1050 Ogle Rd, O'Fallon, IL 62269-7120, United States MEETUPS
🎃Pumpkin Drop🎃 Fri, 06 Nov at 02:00 pm 1050 Ogle Rd, O'Fallon, IL 62269-7120, United States WORKSHOPS
Briarstone Halloween Spooktacular Schooling Show Sat, 24 Oct at 08:00 am Briarstone Riding Academy CONTESTS
✏️Smencils, Smelly Gellies & MORE🖍️ Fri, 04 Dec at 11:30 am 1050 Ogle Rd, O'Fallon, IL 62269-7120, United States
SOLD OUT! Left It In The River Tour with Jamie MacDonald - O'Fallon, IL Fri, 20 Nov at 07:00 pm Enjoy Church FREE MUSIC
World of Authors Poetry Jam and Spoken Word Open-Mic Night Wed, 17 Jan at 05:30 pm Dogwood Social House O'Fallon IL FREE ART
Stuffy Sleepover Fri, 22 Jan at 08:15 am 1050 Ogle Rd, O'Fallon, IL 62269-7120, United States WORKSHOPS
Annual Congregational Meeting Sun, 15 Nov at 12:15 pm 520 E US Highway 50, O'Fallon, IL, United States, Illinois 62269 MEETUPS
Santa's Kottage Mon, 07 Dec at 08:45 am 1050 Ogle Rd, O'Fallon, IL 62269-7120, United States SHOPPING
Cafe Freedom Healing and Empowerment Summit Thu, 28 Jan at 07:00 pm O'Fallon Assembly Of God USD 82 FITNESS
Youth "Day of the Dead"/Family History Activity Sat, 07 Nov at 06:00 pm The Church of Jesus Christ of Latter-day Saints FREE HOLIDAY
Horse Show (Rain date) Sat, 24 Oct at 11:00 am 1982 Quarry Rd, O'Fallon, IL 62269-4131, United States
Christmas with Gracelands Ultimate Elvis Champion Bill Cherry! Fri, 18 Dec at 07:00 pm 400 Regency Park Ofallon il 62269 MUSIC
45th Annual O'Fallon Panthers Band Boosters "Art and Craft Fair" // Quirks and Giggles // Day 1 Sat, 07 Nov at 09:00 am 600 S Smiley St, O'Fallon, IL 62269-2316, United States MUSIC
Annual Rotary Halloween Parade Sat, 31 Oct at 11:45 am S Vine St, O'Fallon, IL 62269, United States HALLOWEEN