find Halloween events for every vibe.

Pop up events in O'fallon, MO

Travis Baldree | Brigands & Breadknives
Tue, Nov 18, 7:00 PM
Midtown · 18Rails | THE venue @ City Foundry STL
Travis Baldree | Brigands & Breadknives
Tue, Nov 18, 7:00 PM
Midtown · 18Rails | THE venue @ City Foundry STL
Sales end soon
A Night Out in Chesterfield | Dinner with Strangers
Tomorrow at 7:00 PM + 81 more
Bellefontaine · Restaurant of the Week
Sales end soon
A Night Out in Chesterfield | Dinner with Strangers
Tomorrow at 7:00 PM + 81 more
Bellefontaine · Restaurant of the Week
Sales end soon
St. Louis Detective Mystery Game: Infiltrate a Secret Society!
Tomorrow at 4:00 PM + 325 more
Central West End · 4905 Lindell Blvd
Sales end soon
St. Louis Detective Mystery Game: Infiltrate a Secret Society!
Tomorrow at 4:00 PM + 325 more
Central West End · 4905 Lindell Blvd
ST louis, Everything Eyebrow Certification| 8 Methods | School of Gla
Fri, Jan 2, 10:00 AM + 6 more
Bellemont · Regus - St Louis - CityPlace
ST louis, Everything Eyebrow Certification| 8 Methods | School of Gla
Fri, Jan 2, 10:00 AM + 6 more
Bellemont · Regus - St Louis - CityPlace
Trek Ballwin | Basic Bike Maintenance
Tue, Oct 21, 6:00 PM
Missouri · Trek Bicycle St. Louis Ballwin
Trek Ballwin | Basic Bike Maintenance
Tue, Oct 21, 6:00 PM
Missouri · Trek Bicycle St. Louis Ballwin
Magic Mustache Club @ Old Rock House
Sun, Oct 26, 6:00 PM
Lasalle Park · Old Rock House
Magic Mustache Club @ Old Rock House
Sun, Oct 26, 6:00 PM
Lasalle Park · Old Rock House
2025 St. Louis Halloween Bar Crawl
Sat, Nov 1, 4:00 PM
Peabody · Great Grizzly Bear
2025 St. Louis Halloween Bar Crawl
Sat, Nov 1, 4:00 PM
Peabody · Great Grizzly Bear
Monthly Botox & Dermal Filler Training Certification - St. Louis, MO
Sun, Oct 26, 10:00 AM + 2 more
Downtown West · St. Louis
Monthly Botox & Dermal Filler Training Certification - St. Louis, MO
Sun, Oct 26, 10:00 AM + 2 more
Downtown West · St. Louis
St Louis Singles Event: Mini Golf Social (Ages 25–45)
Thursday at 7:00 PM
Midtown · Puttshack - St. Louis
St Louis Singles Event: Mini Golf Social (Ages 25–45)
Thursday at 7:00 PM
Midtown · Puttshack - St. Louis
The Oz Escape: A Wicked Glitch in St. Louis
Tomorrow at 10:00 AM
Downtown West · St. Louis
The Oz Escape: A Wicked Glitch in St. Louis
Tomorrow at 10:00 AM
Downtown West · St. Louis
Craft Family: Making Holiday Cards
Sat, Nov 22, 10:00 AM
Academy · Craft Alliance
Craft Family: Making Holiday Cards
Sat, Nov 22, 10:00 AM
Academy · Craft Alliance
Soulard: Beyond the Beer
Sun, Oct 19, 2:00 PM
Lasalle Park · Soulard Farmers Market
Soulard: Beyond the Beer
Sun, Oct 19, 2:00 PM
Lasalle Park · Soulard Farmers Market
Just added!
Pumpkin + Canvas Acrylic Paint Pour
Wed, Oct 29, 6:30 PM
St. Peters · 6220 Mexico Road, St. Peters, MO, USA
Just added!
Pumpkin + Canvas Acrylic Paint Pour
Wed, Oct 29, 6:30 PM
St. Peters · 6220 Mexico Road, St. Peters, MO, USA
Pyromania 2026
Sat, Sep 19, 2:00 PM
Missouri · Cedar Lake Cellars
Pyromania 2026
Sat, Sep 19, 2:00 PM
Missouri · Cedar Lake Cellars
Thursday's @ NSYTE
Thursday at 7:00 PM + 11 more
Old North St. Louis · 918 La Beaume Ave
Thursday's @ NSYTE
Thursday at 7:00 PM + 11 more
Old North St. Louis · 918 La Beaume Ave
Comic Relief's Halloween Sale
Fri, Oct 24, 11:00 AM
St. Charles · Comic Book Relief
Comic Relief's Halloween Sale
Fri, Oct 24, 11:00 AM
St. Charles · Comic Book Relief
LaunchCode Community October 2025 Meetup
Sat, Oct 25, 12:30 PM
Academy · LaunchCode Headquarters
LaunchCode Community October 2025 Meetup
Sat, Oct 25, 12:30 PM
Academy · LaunchCode Headquarters
CEU Opportunity - Designed For Entertaining Presented by True Caliber
Thu, Oct 23, 5:00 PM
Clayton · 8027 Forsyth Blvd
CEU Opportunity - Designed For Entertaining Presented by True Caliber
Thu, Oct 23, 5:00 PM
Clayton · 8027 Forsyth Blvd
Sales end soon
Ellbee's Grand Expansion Event
Tomorrow at 3:00 PM
Wentzville · Ellbee's The Gathering Spot
Sales end soon
Ellbee's Grand Expansion Event
Tomorrow at 3:00 PM
Wentzville · Ellbee's The Gathering Spot

Trends in O'fallon

Explore more trends

Travis Baldree | Brigands & Breadknives

Travis Baldree | Brigands & Breadknives

A Night Out in Chesterfield | Dinner with Strangers

A Night Out in Chesterfield | Dinner with Strangers

St. Louis Detective Mystery Game: Infiltrate a Secret Society!

St. Louis Detective Mystery Game: Infiltrate a Secret Society!

ST louis, Everything Eyebrow Certification| 8 Methods | School of Gla

ST louis, Everything Eyebrow Certification| 8 Methods | School of Gla

Trek Ballwin | Basic Bike Maintenance

Trek Ballwin | Basic Bike Maintenance

Magic Mustache Club @ Old Rock House

Magic Mustache Club @ Old Rock House

2025 St. Louis Halloween Bar Crawl

2025 St. Louis Halloween Bar Crawl

Monthly Botox & Dermal Filler Training Certification - St. Louis, MO

Monthly Botox & Dermal Filler Training Certification - St. Louis, MO

St Louis Singles Event: Mini Golf Social (Ages 25–45)

St Louis Singles Event: Mini Golf Social (Ages 25–45)

The Oz Escape: A Wicked Glitch in St. Louis

The Oz Escape: A Wicked Glitch in St. Louis

Craft Family: Making Holiday Cards

Craft Family: Making Holiday Cards

Soulard: Beyond the Beer

Soulard: Beyond the Beer

Pumpkin + Canvas Acrylic Paint Pour

Pumpkin + Canvas Acrylic Paint Pour

Pyromania 2026

Pyromania 2026

Thursday's @ NSYTE

Thursday's @ NSYTE

Comic Relief's Halloween Sale

Comic Relief's Halloween Sale

LaunchCode Community October 2025 Meetup

LaunchCode Community October 2025 Meetup

CEU Opportunity - Designed For Entertaining Presented by True Caliber

CEU Opportunity - Designed For Entertaining Presented by True Caliber

Ellbee's Grand Expansion Event

Ellbee's Grand Expansion Event

Things to do around O'fallon

Trends in O'fallon

1. Events happening today near me

2. Car shows

3. Trunk or treat

4. October

5. Crafts fair

6. Scramble golf tournaments

7. Job fairs

8. Halloween party

9. Kids

10. Puff and paint

11. Music bingo

12. Fireworks show