Your version of Internet Explorer is not longer supported. Please upgrade your browser.

Free Events and Things to do in O'fallon, MO

Search for something you love or check out popular events in your area.

Almost full
Cottleville Easter Egg Hunt Sponsored by Gateway Realty Group
Sat, Mar 28, 10:00 AM
Cottleville · Frankie Martin's Garden
Almost full
Cottleville Easter Egg Hunt Sponsored by Gateway Realty Group
Sat, Mar 28, 10:00 AM
Cottleville · Frankie Martin's Garden
Going fast
Missouri's Tax Future: Competitiveness, Reforms, and Proposed Policies
Wednesday at 6:30 PM
St. Charles · Dunseth Auditorium in Harmon Hall
Going fast
Missouri's Tax Future: Competitiveness, Reforms, and Proposed Policies
Wednesday at 6:30 PM
St. Charles · Dunseth Auditorium in Harmon Hall
Full Arch Rehab: Why Your Patients Are Really Saying "No"
Thu, Apr 9, 6:00 PM
Chesterfield · AC Hotel St. Louis Chesterfield
Full Arch Rehab: Why Your Patients Are Really Saying "No"
Thu, Apr 9, 6:00 PM
Chesterfield · AC Hotel St. Louis Chesterfield
LARGEST SPEED NETWORKING EVENT In STL-April 7, 2026
Tue, Apr 7, 12:00 PM
St. Charles · St. Charles Convention Center
LARGEST SPEED NETWORKING EVENT In STL-April 7, 2026
Tue, Apr 7, 12:00 PM
St. Charles · St. Charles Convention Center
St. Luke's Be Still to Chill
Tue, Apr 7, 6:30 PM
O'Fallon · St Luke's - WingHaven Medical Building
St. Luke's Be Still to Chill
Tue, Apr 7, 6:30 PM
O'Fallon · St Luke's - WingHaven Medical Building
#TableTalk Shift Happens: Redefining What’s Next
Thu, Apr 9, 11:00 AM
Maryland Heights · Dave & Buster's St. Louis
#TableTalk Shift Happens: Redefining What’s Next
Thu, Apr 9, 11:00 AM
Maryland Heights · Dave & Buster's St. Louis
Sales end soon
Courageous Authenticity: Your Superpower and Strategy - Chesterfield, MO
Tuesday at 11:30 AM
Chesterfield · Firefly Grill STL
Sales end soon
Courageous Authenticity: Your Superpower and Strategy - Chesterfield, MO
Tuesday at 11:30 AM
Chesterfield · Firefly Grill STL
Almost full
St Luke's Community Biometric Screening at West County Health Expo
Sun, Apr 26, 1:00 PM
Chesterfield · St Louis West County Seventh-day Adventist Church
Almost full
St Luke's Community Biometric Screening at West County Health Expo
Sun, Apr 26, 1:00 PM
Chesterfield · St Louis West County Seventh-day Adventist Church
Job News St. Louis Job Fair | Multi-Industry Hiring Event
Thu, Mar 26, 10:00 AM
Maryland Heights · Orlando's Event Center
Job News St. Louis Job Fair | Multi-Industry Hiring Event
Thu, Mar 26, 10:00 AM
Maryland Heights · Orlando's Event Center
Brides in Bloom
Sun, Apr 12, 11:00 AM
Saint Charles · White Traditions Bridal House
Brides in Bloom
Sun, Apr 12, 11:00 AM
Saint Charles · White Traditions Bridal House
St. Luke's Mom and Baby Expo
Thu, Apr 16, 5:00 PM
Chesterfield · St. Luke's Hospital Institute for Health Education-2ND Floor, North Medical Building
St. Luke's Mom and Baby Expo
Thu, Apr 16, 5:00 PM
Chesterfield · St. Luke's Hospital Institute for Health Education-2ND Floor, North Medical Building
Wine-O Bingo
Fri, Mar 27, 7:00 PM
Wright City · Cedar Lake Cellars
Wine-O Bingo
Fri, Mar 27, 7:00 PM
Wright City · Cedar Lake Cellars
STL Social Summit 2026
Wed, Apr 8, 1:00 PM
O'Fallon · The Waterbury Meeting Center
STL Social Summit 2026
Wed, Apr 8, 1:00 PM
O'Fallon · The Waterbury Meeting Center
Network-A-Thon April '26
Tue, Apr 28, 4:00 PM
Maryland Heights · 13857 Riverport Dr
Network-A-Thon April '26
Tue, Apr 28, 4:00 PM
Maryland Heights · 13857 Riverport Dr
Going fast
Budgeting, Forecasting and Dynamic Pricing Using AI Models - St. Charles
Thu, Apr 2, 9:30 AM
Saint Charles · Diode Dynamics
Going fast
Budgeting, Forecasting and Dynamic Pricing Using AI Models - St. Charles
Thu, Apr 2, 9:30 AM
Saint Charles · Diode Dynamics
Almost full
Kids Club: Power Foods for Baby Birds!
Tomorrow at 11:00 AM
Saint Charles · 1983 Zumbehl Rd
Almost full
Kids Club: Power Foods for Baby Birds!
Tomorrow at 11:00 AM
Saint Charles · 1983 Zumbehl Rd
Uncover the Secrets of Kangen Water
Tomorrow at 10:00 AM
Chesterfield · Our Free Water Store
Uncover the Secrets of Kangen Water
Tomorrow at 10:00 AM
Chesterfield · Our Free Water Store
Trek St. Peters | Basic Bike Maintenance
Thu, Apr 9, 6:00 PM
St. Peters · Trek Bicycle St. Peters
Trek St. Peters | Basic Bike Maintenance
Thu, Apr 9, 6:00 PM
St. Peters · Trek Bicycle St. Peters
Unlocking the Key: Small Secrets to Help You WIN Big - May 6, 2026
Wed, May 6, 10:30 AM
Chesterfield · 14755 N Outer 40 Rd
Unlocking the Key: Small Secrets to Help You WIN Big - May 6, 2026
Wed, May 6, 10:30 AM
Chesterfield · 14755 N Outer 40 Rd
Dardenne Creek Campus Spring Open House
Wed, Apr 15, 5:00 PM
Dardenne Prairie · St. Charles Community College (SCC) – Dardenne Creek Campus
Dardenne Creek Campus Spring Open House
Wed, Apr 15, 5:00 PM
Dardenne Prairie · St. Charles Community College (SCC) – Dardenne Creek Campus

Trends in O'fallon

Explore more trends

Explore more trends

Frequently asked questions about O'fallon

What are the best free events to attend?

According to Eventbrite, the best free events are:

Cottleville Easter Egg Hunt Sponsored by Gateway Realty Group

Full Arch Rehab: Why Your Patients Are Really Saying "No"

LARGEST SPEED NETWORKING EVENT In STL-April 7, 2026

St. Luke's Be Still to Chill

Which events are currently trending in O'fallon?

The trending searches this month in O'fallon are:

events happening today near me

scramble golf tournaments

Which free events are coming up?

Discover the best free events happening soon – you don't want to miss them:

Uncover the Secrets of Kangen Water

Kids Club: Power Foods for Baby Birds!

Courageous Authenticity: Your Superpower and Strategy - Chesterfield, MO

Missouri's Tax Future: Competitiveness, Reforms, and Proposed Policies