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Events and Things to do in O'Fallon, MO

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GATEway FATE 2026
Sat, Oct 17, 11:00 AM
Saint Charles · St. Charles Convention Center
GATEway FATE 2026
Sat, Oct 17, 11:00 AM
Saint Charles · St. Charles Convention Center
Anthology - A Tribute to the Allman Brothers Band
Fri, Aug 7, 7:00 PM
Chesterfield · Chesterfield Amphitheater
Anthology - A Tribute to the Allman Brothers Band
Fri, Aug 7, 7:00 PM
Chesterfield · Chesterfield Amphitheater
Future of Innovation in Higher Education: AI/VR Summit
Mon, Jul 20, 12:00 PM
Saint Charles · Ameristar Casino Resort Spa St. Charles
Future of Innovation in Higher Education: AI/VR Summit
Mon, Jul 20, 12:00 PM
Saint Charles · Ameristar Casino Resort Spa St. Charles
Just added
An Evening with Joss Richard, in conversation with Bal Khabra
Wed, Aug 12, 7:00 PM
St. Peters · St. Charles City-County Library, Spencer Road Branch
Just added
An Evening with Joss Richard, in conversation with Bal Khabra
Wed, Aug 12, 7:00 PM
St. Peters · St. Charles City-County Library, Spencer Road Branch
Michael Jackson Legacy Party
Fri, Jun 26, 6:30 PM
Saint Charles · Quintessential Dining & Nightlife
Michael Jackson Legacy Party
Fri, Jun 26, 6:30 PM
Saint Charles · Quintessential Dining & Nightlife
Mahjong Open Play at Magpies
Thu, Jun 25, 6:00 PM
Saint Charles · Magpie's Cafe
Mahjong Open Play at Magpies
Thu, Jun 25, 6:00 PM
Saint Charles · Magpie's Cafe
Dorothy VIP @ Hollywood Casino Amphitheater
Sun, Jun 14, 6:00 PM
Maryland Heights · Hollywood Casino Amphitheater
Dorothy VIP @ Hollywood Casino Amphitheater
Sun, Jun 14, 6:00 PM
Maryland Heights · Hollywood Casino Amphitheater
PAINT & SIP: Bookish Watercolor (Limefish Studio @ Lakeside Bookshop)
Thu, Jun 18, 6:00 PM
Lake Saint Louis · Lakeside Bookshop, LLC
PAINT & SIP: Bookish Watercolor (Limefish Studio @ Lakeside Bookshop)
Thu, Jun 18, 6:00 PM
Lake Saint Louis · Lakeside Bookshop, LLC
Going fast
Beginners Mahjong at Magpies
Thu, Jun 18, 5:00 PM
Saint Charles · Magpie's Restaurant
Going fast
Beginners Mahjong at Magpies
Thu, Jun 18, 5:00 PM
Saint Charles · Magpie's Restaurant
St Louis Singles Event: Arcade Night (Ages 25–40)
Thu, Jun 18, 7:00 PM
Maryland Heights · Dave & Buster's St. Louis
St Louis Singles Event: Arcade Night (Ages 25–40)
Thu, Jun 18, 7:00 PM
Maryland Heights · Dave & Buster's St. Louis
7 Bridges—The Ultimate Eagles Experience
Fri, Sep 25, 7:00 PM
Chesterfield · Chesterfield Amphitheater
7 Bridges—The Ultimate Eagles Experience
Fri, Sep 25, 7:00 PM
Chesterfield · Chesterfield Amphitheater
Yoga and Mimosas
Sun, Jun 7, 10:30 AM
Wentzville · 400 Crossroads Business Park Ct
Yoga and Mimosas
Sun, Jun 7, 10:30 AM
Wentzville · 400 Crossroads Business Park Ct
#AfterHours Karaoke Birthday Bash
Fri, Jul 17, 6:00 PM
Maryland Heights · Dave & Buster's St. Louis
#AfterHours Karaoke Birthday Bash
Fri, Jul 17, 6:00 PM
Maryland Heights · Dave & Buster's St. Louis
Chesterfield Amphitheater Trivia Night
Tue, Jul 14, 7:00 PM
Chesterfield · Chesterfield Amphitheater
Chesterfield Amphitheater Trivia Night
Tue, Jul 14, 7:00 PM
Chesterfield · Chesterfield Amphitheater
Sunday Funday Puppy Yoga~ June 28 @1:00 at Third Wheel Brewing in St Peters
Sun, Jun 28, 1:00 PM
St. Peters · Third Wheel Brewing
Sunday Funday Puppy Yoga~ June 28 @1:00 at Third Wheel Brewing in St Peters
Sun, Jun 28, 1:00 PM
St. Peters · Third Wheel Brewing
Sales end soon
2026 Midwest Gateway Chapter of HIMSS - Summer Social
Thursday at 4:30 PM
Creve Coeur · Bristol Seafood Grill
Sales end soon
2026 Midwest Gateway Chapter of HIMSS - Summer Social
Thursday at 4:30 PM
Creve Coeur · Bristol Seafood Grill
2026 STLYHFC 4v4 High School Summer Showdown
Chesterfield · Maryville University Hockey Center
2026 STLYHFC 4v4 High School Summer Showdown
Chesterfield · Maryville University Hockey Center
Big Love—The Ultimate Fleetwood Mac Experience
Fri, Sep 11, 7:00 PM
Chesterfield · Chesterfield Amphitheater
Big Love—The Ultimate Fleetwood Mac Experience
Fri, Sep 11, 7:00 PM
Chesterfield · Chesterfield Amphitheater
Almost full
Jake's On Main Presents Mahjong 101 & 102
Tue, Jun 16, 6:00 PM
Saint Charles · Jake's on Main
Almost full
Jake's On Main Presents Mahjong 101 & 102
Tue, Jun 16, 6:00 PM
Saint Charles · Jake's on Main
The Car Mom Auto Show Presented by Capital One Auto Navigator
Sat, Jun 13, 10:00 AM
Manchester · Queeny Park Rink
The Car Mom Auto Show Presented by Capital One Auto Navigator
Sat, Jun 13, 10:00 AM
Manchester · Queeny Park Rink

Trends in O'Fallon

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Explore more trends

Frequently asked questions about O'Fallon

What are the best events to attend?

According to Eventbrite, the best events are:

GATEway FATE 2026

Anthology - A Tribute to the Allman Brothers Band

Future of Innovation in Higher Education: AI/VR Summit

An Evening with Joss Richard, in conversation with Bal Khabra

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 events are coming up?

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

2026 Midwest Gateway Chapter of HIMSS - Summer Social

Yoga and Mimosas

The Car Mom Auto Show Presented by Capital One Auto Navigator

Dorothy VIP @ Hollywood Casino Amphitheater