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

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

Brick X Brick Collective Monthly Meet Up
Thu, Jun 11, 6:00 PM + 4 more
St. Louis · Invest STL
Brick X Brick Collective Monthly Meet Up
Thu, Jun 11, 6:00 PM + 4 more
St. Louis · Invest STL
Strive 2 Fitness Walk in the Park
Tuesday at 9:00 AM + 29 more
St. Louis · Forest Park at the East Visitor Parking lot
Strive 2 Fitness Walk in the Park
Tuesday at 9:00 AM + 29 more
St. Louis · Forest Park at the East Visitor Parking lot
Summer Social: Futures Fund Awardee Celebration & Announcement
Thu, Jun 4, 5:00 PM
St. Louis · The Luminary
Summer Social: Futures Fund Awardee Celebration & Announcement
Thu, Jun 4, 5:00 PM
St. Louis · The Luminary
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
Going fast
Beatles Concert in the Dark w Award Winning Violinist WAITLIST SHOW
Sun, Jul 12, 8:00 PM
St Louis · Secret Location in St Louis
Going fast
Beatles Concert in the Dark w Award Winning Violinist WAITLIST SHOW
Sun, Jul 12, 8:00 PM
St Louis · Secret Location in St Louis
Sales end soon
Monthly Business Mingle at Big Daddy's – Business Growth Network
Today at 5:00 PM
St. Louis · Big Daddy's Bar in Soulard #1 Patio & Party Spot
Sales end soon
Monthly Business Mingle at Big Daddy's – Business Growth Network
Today at 5:00 PM
St. Louis · Big Daddy's Bar in Soulard #1 Patio & Party Spot
2026 QueerTechSTL Kickoff & Strategy Reveal
Fri, May 29, 6:00 PM
St. Louis · The Post Building — St. Louis
2026 QueerTechSTL Kickoff & Strategy Reveal
Fri, May 29, 6:00 PM
St. Louis · The Post Building — St. Louis
Artificial Intelligence (AI) Demystified
Tue, Jul 21, 10:00 AM
St. Louis · Sunset Hills Community Center
Artificial Intelligence (AI) Demystified
Tue, Jul 21, 10:00 AM
St. Louis · Sunset Hills Community Center
Experience the Power of Peer Advisory with TAB
Thu, Jun 11, 12:00 PM
Alton · The Wedge Innovation Center
Experience the Power of Peer Advisory with TAB
Thu, Jun 11, 12:00 PM
Alton · The Wedge Innovation Center
Faith Entrepreneurs
Tue, Jun 2, 5:30 PM + 1 more
St. Louis · 13001 Gravois Rd
Faith Entrepreneurs
Tue, Jun 2, 5:30 PM + 1 more
St. Louis · 13001 Gravois Rd
Saturday Worship and Prophetic Prayer Encounter: Friends and Family Day
Sat, Jun 20, 3:00 PM + 42 more
St. Louis · 12424 Lusher Rd
Saturday Worship and Prophetic Prayer Encounter: Friends and Family Day
Sat, Jun 20, 3:00 PM + 42 more
St. Louis · 12424 Lusher Rd
Almost full
Unstoppable Traders - The Modern Trading Lounge
Sunday at 5:00 PM
St. Louis · Spark STL
Almost full
Unstoppable Traders - The Modern Trading Lounge
Sunday at 5:00 PM
St. Louis · Spark STL
ConnectSTL Quarterly Forum: Workforce + AI in St. Louis
Fri, Jun 12, 11:00 AM
St. Louis · T-REX
ConnectSTL Quarterly Forum: Workforce + AI in St. Louis
Fri, Jun 12, 11:00 AM
St. Louis · T-REX
Almost full
Planning Matters
Wed, May 27, 10:00 AM + 4 more
Webster Groves · Arch Brokerage, Inc.
Almost full
Planning Matters
Wed, May 27, 10:00 AM + 4 more
Webster Groves · Arch Brokerage, Inc.
Voices of Care Educational Series Presented by Pharmacy Alternatives
Wed, Jun 10, 9:00 AM
St. Louis · The Westin St. Louis
Voices of Care Educational Series Presented by Pharmacy Alternatives
Wed, Jun 10, 9:00 AM
St. Louis · The Westin St. Louis
Alton Cigar Event #9
Sat, Oct 17, 3:00 PM
Alton · Bluff City Grill
Alton Cigar Event #9
Sat, Oct 17, 3:00 PM
Alton · Bluff City Grill
Complimentary Wine Sampling @ Sappington | Toast to Summer
Thu, Jun 11, 6:00 PM
St. Louis · The Wine Cellar Outlet Sappington Plaza
Complimentary Wine Sampling @ Sappington | Toast to Summer
Thu, Jun 11, 6:00 PM
St. Louis · The Wine Cellar Outlet Sappington Plaza
Embrace the Challenge - South County
Wed, Jun 3, 11:30 AM
St. Louis · Nancys Urban Tower Farm LLC
Embrace the Challenge - South County
Wed, Jun 3, 11:30 AM
St. Louis · Nancys Urban Tower Farm LLC
To Avoid Drowning, Become the Ocean: Opening Reception
Fri, Jun 26, 7:00 PM
St. Louis · The Luminary
To Avoid Drowning, Become the Ocean: Opening Reception
Fri, Jun 26, 7:00 PM
St. Louis · The Luminary

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:

Brick X Brick Collective Monthly Meet Up

Summer Social: Futures Fund Awardee Celebration & Announcement

Missouri Bridal & Wedding Expo

Beatles Concert in the Dark w Award Winning Violinist WAITLIST SHOW

Which events are currently trending in O'Fallon?

The trending searches this month in O'Fallon are:

mothers day

carnival festival

events happening today near me

mothers day brunch

Which free events are coming up?

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

Monthly Business Mingle at Big Daddy's – Business Growth Network

Unstoppable Traders - The Modern Trading Lounge

Strive 2 Fitness Walk in the Park

Planning Matters

Brick X Brick Collective Monthly Meet Up

Brick X Brick Collective Monthly Meet Up

Strive 2 Fitness Walk in the Park

Strive 2 Fitness Walk in the Park

Summer Social: Futures Fund Awardee Celebration & Announcement

Summer Social: Futures Fund Awardee Celebration & Announcement

Missouri Bridal & Wedding Expo

Missouri Bridal & Wedding Expo

Beatles Concert in the Dark w Award Winning Violinist WAITLIST SHOW

Beatles Concert in the Dark w Award Winning Violinist WAITLIST SHOW

Monthly Business Mingle at Big Daddy's – Business Growth Network

Monthly Business Mingle at Big Daddy's – Business Growth Network

2026 QueerTechSTL Kickoff & Strategy Reveal

2026 QueerTechSTL Kickoff & Strategy Reveal

Artificial Intelligence (AI) Demystified

Artificial Intelligence (AI) Demystified

Experience the Power of Peer Advisory with TAB

Experience the Power of Peer Advisory with TAB

Faith Entrepreneurs

Faith Entrepreneurs

Saturday Worship and Prophetic Prayer Encounter: Friends and Family Day

Saturday Worship and Prophetic Prayer Encounter: Friends and Family Day

Unstoppable Traders - The Modern Trading Lounge

Unstoppable Traders - The Modern Trading Lounge

ConnectSTL Quarterly Forum: Workforce + AI in St. Louis

ConnectSTL Quarterly Forum: Workforce + AI in St. Louis

Planning Matters

Planning Matters

Voices of Care Educational Series Presented by Pharmacy Alternatives

Voices of Care Educational Series Presented by Pharmacy Alternatives

Alton Cigar Event #9

Alton Cigar Event #9

Complimentary Wine Sampling @ Sappington | Toast to Summer

Complimentary Wine Sampling @ Sappington | Toast to Summer

Embrace the Challenge - South County

Embrace the Challenge - South County

To Avoid Drowning, Become the Ocean: Opening Reception

To Avoid Drowning, Become the Ocean: Opening Reception

Things to do around O'Fallon

Trends in O'Fallon

1. Mothers day

2. Carnival festival

3. Events happening today near me

4. Mothers day brunch

5. Car shows

6. Scramble golf tournaments

7. Kids

8. Cannabis_event

9. Goat yoga

10. Crafts fair

11. Music bingo

12. Bingo

What are the best free events to attend?

Which events are currently trending in O'Fallon?

Which free events are coming up?