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.

Network-A-Thon July '26
Today at 4:00 PM
Maryland Heights · 13857 Riverport Dr
Network-A-Thon July '26
Today at 4:00 PM
Maryland Heights · 13857 Riverport Dr
6th Annual St. Charles Jewish Festival
Sun, Aug 9, 11:00 AM
Saint Charles · Lewis and Clark Boat House
6th Annual St. Charles Jewish Festival
Sun, Aug 9, 11:00 AM
Saint Charles · Lewis and Clark Boat House
Almost full
Business After Hours: The Networking Experience
Tue, Aug 11, 6:30 PM
Saint Charles · Embassy Suites by Hilton St. Louis St. Charles
Almost full
Business After Hours: The Networking Experience
Tue, Aug 11, 6:30 PM
Saint Charles · Embassy Suites by Hilton St. Louis St. Charles
One World Fest 2026 | FREE Multicultural Festival | St Peters, MO
Sat, Aug 22, 12:00 AM
St. Peters · Mid Rivers Mall
One World Fest 2026 | FREE Multicultural Festival | St Peters, MO
Sat, Aug 22, 12:00 AM
St. Peters · Mid Rivers Mall
Confluence Tech Hub Startup Awards
Wed, Aug 26, 5:00 PM
St Charles · OPO Startups [1909 Old Post Office]
Confluence Tech Hub Startup Awards
Wed, Aug 26, 5:00 PM
St Charles · OPO Startups [1909 Old Post Office]
94X Faith in Business Series - St Louis
Tue, Aug 4, 7:30 AM
Chesterfield · Undivided Experience Center
94X Faith in Business Series - St Louis
Tue, Aug 4, 7:30 AM
Chesterfield · Undivided Experience Center
Sales end soon
Boots & Bourbon Sing-Along Bingo
Tomorrow at 7:00 PM
Cottleville · Cottle Village
Sales end soon
Boots & Bourbon Sing-Along Bingo
Tomorrow at 7:00 PM
Cottleville · Cottle Village
August Lakeside Book Club
Wed, Aug 12, 6:00 PM
Lake Saint Louis · Lakeside Bookshop, LLC
August Lakeside Book Club
Wed, Aug 12, 6:00 PM
Lake Saint Louis · Lakeside Bookshop, LLC
Sip & Connect Chesterfield: Where Conversations Turn Into Connections
Mon, Aug 10, 6:00 PM
Chesterfield · Total Wine & More
Sip & Connect Chesterfield: Where Conversations Turn Into Connections
Mon, Aug 10, 6:00 PM
Chesterfield · Total Wine & More
August Lakeside Cookbook Club
Wed, Aug 19, 6:30 PM
Lake Saint Louis · Lakeside Bookshop, LLC
August Lakeside Cookbook Club
Wed, Aug 19, 6:30 PM
Lake Saint Louis · Lakeside Bookshop, LLC
Sales end soon
Free Mahjong Open Play at Cork & Rind
Friday at 6:30 PM
Saint Charles · Cork & Rind
Sales end soon
Free Mahjong Open Play at Cork & Rind
Friday at 6:30 PM
Saint Charles · Cork & Rind
Sales end soon
Salsa y Salsa Night | Young Adults (18–Early 30s)
Friday at 7:00 PM
St. Peters · 888 Birdie Hills Rd
Sales end soon
Salsa y Salsa Night | Young Adults (18–Early 30s)
Friday at 7:00 PM
St. Peters · 888 Birdie Hills Rd
The Detour Is the Direction - O'Fallon, MO
Tue, Aug 18, 11:30 AM
O'Fallon · Rendezvous
The Detour Is the Direction - O'Fallon, MO
Tue, Aug 18, 11:30 AM
O'Fallon · Rendezvous
AI in Construction Executive Roundtable
Fri, Aug 28, 8:00 AM
Weldon Spring · Whitmoor Country Club
AI in Construction Executive Roundtable
Fri, Aug 28, 8:00 AM
Weldon Spring · Whitmoor Country Club
August Network In Action St. Charles County - Meeting & Business Networking
Wed, Aug 12, 3:30 PM
Saint Charles · The Wine Garden
August Network In Action St. Charles County - Meeting & Business Networking
Wed, Aug 12, 3:30 PM
Saint Charles · The Wine Garden
Discover Next Level Networking with Network In Action!
Today at 4:00 PM
Chesterfield · StackHouse Pub & Grill
Discover Next Level Networking with Network In Action!
Today at 4:00 PM
Chesterfield · StackHouse Pub & Grill
Voices Unveiled
Sat, Aug 22, 11:00 AM
Bridgeton · 12303 De Paul Ln
Voices Unveiled
Sat, Aug 22, 11:00 AM
Bridgeton · 12303 De Paul Ln
2026 Riverdale Community Fishing Derby
Sat, Sep 26, 9:00 AM
Saint Paul · Riverdale Park Drive
2026 Riverdale Community Fishing Derby
Sat, Sep 26, 9:00 AM
Saint Paul · Riverdale Park Drive
Dance Pizazz Exclusive Guest Dance Party!
Fri, Aug 7, 7:00 PM
Saint Charles · 6722 State Rte N
Dance Pizazz Exclusive Guest Dance Party!
Fri, Aug 7, 7:00 PM
Saint Charles · 6722 State Rte N
Everyone Communicates, Few Connect! - O'Fallon, MO
Tue, Sep 15, 11:30 AM
O'Fallon · Rendezvous
Everyone Communicates, Few Connect! - O'Fallon, MO
Tue, Sep 15, 11:30 AM
O'Fallon · Rendezvous

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:

6th Annual St. Charles Jewish Festival

Business After Hours: The Networking Experience

One World Fest 2026 | FREE Multicultural Festival | St Peters, MO

Confluence Tech Hub Startup Awards

Which events are currently trending in O'fallon?

The trending searches this month in O'fallon are:

carnival festival

events happening today near me

Which free events are coming up?

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

Network-A-Thon July '26

Discover Next Level Networking with Network In Action!

Boots & Bourbon Sing-Along Bingo

Free Mahjong Open Play at Cork & Rind