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

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

Going fast
PetCare: STL's Next Tech-Enabled Innovation Ecosystem (STL TechWeek 2026)
Tue, Apr 14, 5:30 PM
St. Louis · T-REX Downtown STL
Going fast
PetCare: STL's Next Tech-Enabled Innovation Ecosystem (STL TechWeek 2026)
Tue, Apr 14, 5:30 PM
St. Louis · T-REX Downtown STL
Men on Mission Presents Father Daughter Brunch
Sat, Apr 11, 10:00 AM
St. Louis · Mission: St Louis
Men on Mission Presents Father Daughter Brunch
Sat, Apr 11, 10:00 AM
St. Louis · Mission: St Louis
Almost full
Backyard Gardening Workshop
Wed, Apr 8, 4:00 PM
St. Louis · 4310 Maffitt Ave
Almost full
Backyard Gardening Workshop
Wed, Apr 8, 4:00 PM
St. Louis · 4310 Maffitt Ave
Sales end soon
Spring Fling
Tomorrow at 10:00 AM
Fairview Heights · 618 Business & Event Center
Sales end soon
Spring Fling
Tomorrow at 10:00 AM
Fairview Heights · 618 Business & Event Center
Third Day - World Vision Volunteers - St. Louis, MO
Sat, Apr 11, 4:30 PM
St. Louis · Chaifetz Arena
Third Day - World Vision Volunteers - St. Louis, MO
Sat, Apr 11, 4:30 PM
St. Louis · Chaifetz Arena
Tours & Pours STL - 2200 LaSalle St Featuring Sam Chimento!
Thu, Apr 9, 6:00 PM
St. Louis · 2200 Lasalle St
Tours & Pours STL - 2200 LaSalle St Featuring Sam Chimento!
Thu, Apr 9, 6:00 PM
St. Louis · 2200 Lasalle St
Phil Wickham - World Vision Volunteers - St. Louis, MO
Sat, May 23, 4:30 PM
St. Louis · Chaifetz Arena
Phil Wickham - World Vision Volunteers - St. Louis, MO
Sat, May 23, 4:30 PM
St. Louis · Chaifetz Arena
S.O.S - Belleville
Thursday at 11:30 AM
Belleville · Tavern On Main
S.O.S - Belleville
Thursday at 11:30 AM
Belleville · Tavern On Main
Sales end soon
An Afternoon with Artist Susan Taylor Glasgow
Sunday at 1:00 PM
St. Louis · 21c Museum Hotel St Louis
Sales end soon
An Afternoon with Artist Susan Taylor Glasgow
Sunday at 1:00 PM
St. Louis · 21c Museum Hotel St Louis
Preparing for the Golden Years - O'Fallon
Mon, Apr 27, 11:30 AM
O'Fallon · Bella Milano O'Fallon
Preparing for the Golden Years - O'Fallon
Mon, Apr 27, 11:30 AM
O'Fallon · Bella Milano O'Fallon
First Fridays at the Pulitzer
Fri, Apr 3, 5:00 PM
St. Louis · Pulitzer Arts Foundation
First Fridays at the Pulitzer
Fri, Apr 3, 5:00 PM
St. Louis · Pulitzer Arts Foundation
Community Health Day with Rung for Women
Sat, Apr 18, 8:00 AM
St. Louis · 2717 Sidney St
Community Health Day with Rung for Women
Sat, Apr 18, 8:00 AM
St. Louis · 2717 Sidney St
Free Guided Museum Tours: "The Future Is Female" at 21c
Thu, Apr 9, 6:00 PM + 6 more
St. Louis · 21c Museum Hotel St Louis
Free Guided Museum Tours: "The Future Is Female" at 21c
Thu, Apr 9, 6:00 PM + 6 more
St. Louis · 21c Museum Hotel St Louis
Missouri Bridal & Wedding Expo
Sun, May 31, 1:00 PM
St. Louis · America's Center Convention Complex
Missouri Bridal & Wedding Expo
Sun, May 31, 1:00 PM
St. Louis · America's Center Convention Complex
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

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:

PetCare: STL's Next Tech-Enabled Innovation Ecosystem (STL TechWeek 2026)

Men on Mission Presents Father Daughter Brunch

Backyard Gardening Workshop

Third Day - World Vision Volunteers - St. Louis, MO

Which events are currently trending in O'Fallon?

The trending searches this month in O'Fallon are:

events happening today near me

egg hunt

job fairs

comedy shows

Which free events are coming up?

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

Spring Fling

An Afternoon with Artist Susan Taylor Glasgow

S.O.S - Belleville

First Fridays at the Pulitzer

PetCare: STL's Next Tech-Enabled Innovation Ecosystem (STL TechWeek 2026)

PetCare: STL's Next Tech-Enabled Innovation Ecosystem (STL TechWeek 2026)

Men on Mission Presents Father Daughter Brunch

Men on Mission Presents Father Daughter Brunch

Backyard Gardening Workshop

Backyard Gardening Workshop

Spring Fling

Spring Fling

Third Day - World Vision Volunteers - St. Louis, MO

Third Day - World Vision Volunteers - St. Louis, MO

Tours & Pours STL - 2200 LaSalle St Featuring Sam Chimento!

Tours & Pours STL - 2200 LaSalle St Featuring Sam Chimento!

Phil Wickham - World Vision Volunteers - St. Louis, MO

Phil Wickham - World Vision Volunteers - St. Louis, MO

S.O.S - Belleville

S.O.S - Belleville

An Afternoon with Artist Susan Taylor Glasgow

An Afternoon with Artist Susan Taylor Glasgow

Preparing for the Golden Years - O'Fallon

Preparing for the Golden Years - O'Fallon

First Fridays at the Pulitzer

First Fridays at the Pulitzer

Community Health Day with Rung for Women

Community Health Day with Rung for Women

Free Guided Museum Tours: "The Future Is Female" at 21c

Free Guided Museum Tours: "The Future Is Female" at 21c

Missouri Bridal & Wedding Expo

Missouri Bridal & Wedding Expo

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

Things to do around O'Fallon

Trends in O'Fallon

1. Events happening today near me

2. Egg hunt

3. Job fairs

4. Comedy shows

5. Scramble golf tournaments

6. Crafts fair

7. Pub crawls

8. Singles

9. Kid friendly

10. Kids events

11. Drag

12. Downtown o'fallon illinois

What are the best free events to attend?

Which events are currently trending in O'Fallon?

Which free events are coming up?