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

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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
Thursday at 10:00 AM
Maryland Heights · Orlando's Event Center
Job News St. Louis Job Fair | Multi-Industry Hiring Event
Thursday at 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
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
Profit Pod - Happy Hour & Networking
Thu, Mar 26, 5:00 PM + 14 more
Chesterfield · 4 Hands at The District
Profit Pod - Happy Hour & Networking
Thu, Mar 26, 5:00 PM + 14 more
Chesterfield · 4 Hands at The District
St Charles Art and Craft Show
Fri, Mar 27, 8:00 AM
Saint Charles · Two Plumbers Event Space
St Charles Art and Craft Show
Fri, Mar 27, 8:00 AM
Saint Charles · Two Plumbers Event Space

Trends in O'fallon

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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:

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

#TableTalk Shift Happens: Redefining What’s Next

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

Courageous Authenticity: Your Superpower and Strategy - Chesterfield, MO

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

Job News St. Louis Job Fair | Multi-Industry Hiring Event