Free Events and Things to do in O'Fallon, IL

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Treesilience St. Louis City Orientation- Scott Joplin House
Sat, Apr 18, 9:30 AM
St. Louis · Scott Joplin House State Historic Site
Treesilience St. Louis City Orientation- Scott Joplin House
Sat, Apr 18, 9:30 AM
St. Louis · Scott Joplin House State Historic Site
Building Connections & The Power of SOS - Smithton, IL
Tue, Apr 21, 11:30 AM
Smithton · Papa Vito’s Pizza Smithton
Building Connections & The Power of SOS - Smithton, IL
Tue, Apr 21, 11:30 AM
Smithton · Papa Vito’s Pizza Smithton
LogistiX: Manufacturing & Supply Chain Summit (STL TechWeek 2026)
Thu, Apr 16, 10:00 AM
St. Louis · Conflux Co-Learning
LogistiX: Manufacturing & Supply Chain Summit (STL TechWeek 2026)
Thu, Apr 16, 10:00 AM
St. Louis · Conflux Co-Learning
Treesilience St. Louis City Orientation- Mission STL
Thu, Apr 9, 5:30 PM
St. Louis · Mission: St Louis
Treesilience St. Louis City Orientation- Mission STL
Thu, Apr 9, 5:30 PM
St. Louis · Mission: St Louis
Code til Dawn (March)
Fri, Mar 27, 5:00 PM
St. Louis · CIC St. Louis - 20 S Sarah St.
Code til Dawn (March)
Fri, Mar 27, 5:00 PM
St. Louis · CIC St. Louis - 20 S Sarah St.
DevLAB: Hacking, Building & Learning in St. Louis
Tue, Jun 2, 5:30 PM
St. Louis · T-REX
DevLAB: Hacking, Building & Learning in St. Louis
Tue, Jun 2, 5:30 PM
St. Louis · T-REX
Almost full
Wisdom Cafe's Old School Jam & Quarterly Celebration
Thursday at 12:00 PM
St. Louis · Delmar DivINe
Almost full
Wisdom Cafe's Old School Jam & Quarterly Celebration
Thursday at 12:00 PM
St. Louis · Delmar DivINe
Voices of Care Educational Series Presented by Pharmacy Alternatives
Wed, Apr 1, 9:00 AM
St. Louis · The Westin St. Louis
Voices of Care Educational Series Presented by Pharmacy Alternatives
Wed, Apr 1, 9:00 AM
St. Louis · The Westin St. Louis
Sigma Spring Speaker Workshop hosted by Sigma Epsilon Eta at Large Chapter
Fri, Apr 10, 9:00 AM
Edwardsville · Southern Illinois University Edwardsville Health Science Complex, School of Pharmacy, Room HS 1340
Sigma Spring Speaker Workshop hosted by Sigma Epsilon Eta at Large Chapter
Fri, Apr 10, 9:00 AM
Edwardsville · Southern Illinois University Edwardsville Health Science Complex, School of Pharmacy, Room HS 1340
Sales end soon
Let's Play With Data (Values, That Is!)
Tuesday at 10:00 AM
St. Louis · Delmar Divine
Sales end soon
Let's Play With Data (Values, That Is!)
Tuesday at 10:00 AM
St. Louis · Delmar Divine
Lecture: Dr. Richard Shiff
Sat, Apr 25, 2:00 PM
St. Louis · Pulitzer Arts Foundation
Lecture: Dr. Richard Shiff
Sat, Apr 25, 2:00 PM
St. Louis · Pulitzer Arts Foundation
Sales end soon
Grown Folks Comedy
Wednesday at 8:00 PM + 41 more
St. Louis · KJ's Bar & Grill
Sales end soon
Grown Folks Comedy
Wednesday at 8:00 PM + 41 more
St. Louis · KJ's Bar & Grill
Lecture: Curator Jodi Hauptman
Thu, May 7, 6:00 PM
St. Louis · Pulitzer Arts Foundation
Lecture: Curator Jodi Hauptman
Thu, May 7, 6:00 PM
St. Louis · Pulitzer Arts Foundation
South Grand 420 Fest
Sun, Apr 19, 12:00 PM
St. Louis · South Grand Boulevard
South Grand 420 Fest
Sun, Apr 19, 12:00 PM
St. Louis · South Grand Boulevard
Saint Louis AI Summit (STL TechWeek 2026)
Mon, Apr 13, 9:30 AM + 1 more
St. Louis · America's Center Convention Complex
Saint Louis AI Summit (STL TechWeek 2026)
Mon, Apr 13, 9:30 AM + 1 more
St. Louis · America's Center Convention Complex
Going fast
Safe Sleep Training
Wednesday at 10:30 AM
St. Louis · Delmar Divine
Going fast
Safe Sleep Training
Wednesday at 10:30 AM
St. Louis · Delmar Divine
Holy Trinity Serbian Orthodox Church FishFest 2026
Fri, Mar 20, 5:00 PM + 2 more
St. Louis · 1910 Serbian Dr
Holy Trinity Serbian Orthodox Church FishFest 2026
Fri, Mar 20, 5:00 PM + 2 more
St. Louis · 1910 Serbian Dr
Almost full
Line Dancing with PeChaz
Fri, Mar 27, 1:30 PM
St. Louis · Delmar DivINe
Almost full
Line Dancing with PeChaz
Fri, Mar 27, 1:30 PM
St. Louis · Delmar DivINe
Bourbon Friday // Networking & Bourbon Tasting
Fri, Apr 24, 4:00 PM
St. Louis · Spark Coworking - St. Louis
Bourbon Friday // Networking & Bourbon Tasting
Fri, Apr 24, 4:00 PM
St. Louis · Spark Coworking - St. Louis

Trends in O'Fallon

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:

Treesilience St. Louis City Orientation- Scott Joplin House

Building Connections & The Power of SOS - Smithton, IL

LogistiX: Manufacturing & Supply Chain Summit (STL TechWeek 2026)

Treesilience St. Louis City Orientation- Mission STL

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

job fairs

singles

Which free events are coming up?

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

Let's Play With Data (Values, That Is!)

Safe Sleep Training

Grown Folks Comedy

Wisdom Cafe's Old School Jam & Quarterly Celebration

Treesilience St. Louis City Orientation- Scott Joplin House

Treesilience St. Louis City Orientation- Scott Joplin House

Building Connections & The Power of SOS - Smithton, IL

Building Connections & The Power of SOS - Smithton, IL

LogistiX: Manufacturing & Supply Chain Summit (STL TechWeek 2026)

LogistiX: Manufacturing & Supply Chain Summit (STL TechWeek 2026)

Treesilience St. Louis City Orientation- Mission STL

Treesilience St. Louis City Orientation- Mission STL

Code til Dawn (March)

Code til Dawn (March)

DevLAB: Hacking, Building & Learning in St. Louis

DevLAB: Hacking, Building & Learning in St. Louis

Wisdom Cafe's Old School Jam & Quarterly Celebration

Wisdom Cafe's Old School Jam & Quarterly Celebration

Voices of Care Educational Series Presented by Pharmacy Alternatives

Voices of Care Educational Series Presented by Pharmacy Alternatives

Sigma Spring Speaker Workshop hosted by Sigma Epsilon Eta at Large Chapter

Sigma Spring Speaker Workshop hosted by Sigma Epsilon Eta at Large Chapter

Let's Play With Data (Values, That Is!)

Let's Play With Data (Values, That Is!)

Lecture: Dr. Richard Shiff

Lecture: Dr. Richard Shiff

Grown Folks Comedy

Grown Folks Comedy

Lecture: Curator Jodi Hauptman

Lecture: Curator Jodi Hauptman

South Grand 420 Fest

South Grand 420 Fest

Saint Louis AI Summit (STL TechWeek 2026)

Saint Louis AI Summit (STL TechWeek 2026)

Safe Sleep Training

Safe Sleep Training

Holy Trinity Serbian Orthodox Church FishFest 2026

Holy Trinity Serbian Orthodox Church FishFest 2026

Line Dancing with PeChaz

Line Dancing with PeChaz

Bourbon Friday // Networking & Bourbon Tasting

Bourbon Friday // Networking & Bourbon Tasting

Things to do around O'Fallon

Trends in O'Fallon

1. Events happening today near me

2. Scramble golf tournaments

3. Job fairs

4. Singles

5. Egg hunt

6. Kids events

7. Kid friendly

8. Crafts fair

9. Valentines day events

10. Open mic

11. Comedy shows

12. Pub crawls

What are the best free events to attend?

Which events are currently trending in O'Fallon?

Which free events are coming up?