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Events and Things to do in O'Fallon, MO

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The St. Louis Margarita Festival
Sat, Apr 4, 12:00 PM
Cottleville · Frankie Martin's Garden
The St. Louis Margarita Festival
Sat, Apr 4, 12:00 PM
Cottleville · Frankie Martin's Garden
Anime St. Louis 2026
Saint Charles · St. Charles Convention Center
Anime St. Louis 2026
Saint Charles · St. Charles Convention Center
Missouri Youth Convention 2026
Wed, Apr 1, 7:00 PM
Saint Charles · St. Charles Convention Center
Missouri Youth Convention 2026
Wed, Apr 1, 7:00 PM
Saint Charles · St. Charles Convention Center
2026 MO Ladies Conference Registration
Thu, Apr 30, 3:00 PM
Saint Charles · St. Charles Convention Center
2026 MO Ladies Conference Registration
Thu, Apr 30, 3:00 PM
Saint Charles · St. Charles Convention Center
Almost full
The EncourageHer Experience Presents: Thrive 2026
Tomorrow at 10:00 AM
St. Peters · Water's Edge Banquet Center
Almost full
The EncourageHer Experience Presents: Thrive 2026
Tomorrow at 10:00 AM
St. Peters · Water's Edge Banquet Center
Saint Louis City Prom
Sun, Mar 29, 5:00 PM
St. Peters · Old Hickory Golf Club
Saint Louis City Prom
Sun, Mar 29, 5:00 PM
St. Peters · Old Hickory Golf Club
Sales end soon
St. Charles' Golden Runway Fashion Show
Wednesday at 1:00 PM
Saint Charles · J. Scheidegger Center for the Arts, Lindenwood University
Sales end soon
St. Charles' Golden Runway Fashion Show
Wednesday at 1:00 PM
Saint Charles · J. Scheidegger Center for the Arts, Lindenwood University
Going fast
Urshan Preview Weekend Spring 2026
Thu, Apr 9, 1:00 PM
Wentzville · Urshan University
Going fast
Urshan Preview Weekend Spring 2026
Thu, Apr 9, 1:00 PM
Wentzville · Urshan University
Flower Expo Local: St. Louis 2026
Thu, Apr 9, 12:00 PM
Chesterfield · The Reverie STL
Flower Expo Local: St. Louis 2026
Thu, Apr 9, 12:00 PM
Chesterfield · The Reverie STL
Going fast
Emo Night LIVE w/ All American Throwbacks @ Brewskeez Smokehouse & Music
Today at 8:00 PM
O'Fallon · Brewskeez Smokehouse & Music
Going fast
Emo Night LIVE w/ All American Throwbacks @ Brewskeez Smokehouse & Music
Today at 8:00 PM
O'Fallon · Brewskeez Smokehouse & Music
An Evening with Author Kylie Lee Baker
Wed, Apr 22, 7:00 PM
St. Peters · St. Charles City-County Library, Spencer Road Branch
An Evening with Author Kylie Lee Baker
Wed, Apr 22, 7:00 PM
St. Peters · St. Charles City-County Library, Spencer Road Branch
The Official Saint Louis City Prom
Sun, Mar 29, 5:00 PM
St. Peters · Old Hickory Golf Club
The Official Saint Louis City Prom
Sun, Mar 29, 5:00 PM
St. Peters · Old Hickory Golf Club
Almost full
4/14 - St. Peters, MO - Twilight in Thailand
Tue, Apr 14, 7:00 PM
St. Peters · 5300 N Service Rd
Almost full
4/14 - St. Peters, MO - Twilight in Thailand
Tue, Apr 14, 7:00 PM
St. Peters · 5300 N Service Rd
Going fast
InfraGard's State of Cyber 2026
Wed, Apr 1, 7:30 AM
Chesterfield · Purser Center at Logan University
Going fast
InfraGard's State of Cyber 2026
Wed, Apr 1, 7:30 AM
Chesterfield · Purser Center at Logan University
SaSSy in St. Louis (A Sexy and SaSSy Signing Event)
Sat, May 30, 11:00 AM
Saint Charles · St. Charles Convention Center
SaSSy in St. Louis (A Sexy and SaSSy Signing Event)
Sat, May 30, 11:00 AM
Saint Charles · St. Charles Convention Center
Going fast
Bingo for the pups!!
Sun, Mar 29, 4:00 PM
Saint Charles · Chicken N Pickle - St. Charles
Going fast
Bingo for the pups!!
Sun, Mar 29, 4:00 PM
Saint Charles · Chicken N Pickle - St. Charles
Going fast
Wedding Open House
Tomorrow at 6:00 PM
Defiance · Chandler Hill Vineyards
Going fast
Wedding Open House
Tomorrow at 6:00 PM
Defiance · Chandler Hill Vineyards
Sales end soon
Babies & Bumps St. Louis 2026
Sunday at 10:00 AM
St. Louis · Marriott St. Louis West
Sales end soon
Babies & Bumps St. Louis 2026
Sunday at 10:00 AM
St. Louis · Marriott St. Louis West
Going fast
4-25-26 Anna's Flying Pigs Pickleball Tournament to Benefit St. Jude Child
Sat, Apr 25, 10:00 AM
Saint Charles · Chicken N Pickle- St. Charles
Going fast
4-25-26 Anna's Flying Pigs Pickleball Tournament to Benefit St. Jude Child
Sat, Apr 25, 10:00 AM
Saint Charles · Chicken N Pickle- St. Charles
Sales end soon
Golden Opportunity: Introduction to Gold-Filled Ring Making
Sunday at 10:00 AM
Saint Charles · Moonumental Jewelry Emporium & Makerspace
Sales end soon
Golden Opportunity: Introduction to Gold-Filled Ring Making
Sunday at 10:00 AM
Saint Charles · Moonumental Jewelry Emporium & Makerspace

Trends in O'Fallon

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Frequently asked questions about O'Fallon

What are the best events to attend?

According to Eventbrite, the best events are:

The St. Louis Margarita Festival

Anime St. Louis 2026

Missouri Youth Convention 2026

2026 MO Ladies Conference Registration

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

Which events are coming up?

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

Emo Night LIVE w/ All American Throwbacks @ Brewskeez Smokehouse & Music

The EncourageHer Experience Presents: Thrive 2026

Wedding Open House

Babies & Bumps St. Louis 2026