Halloween party events in O'fallon, MO

The Official Halloween Bar Crawl (Fri & Sat) - St Louis
Fri, Oct 30, 4:00 PM
St Louis · Great Grizzly Bear
The Official Halloween Bar Crawl (Fri & Sat) - St Louis
Fri, Oct 30, 4:00 PM
St Louis · Great Grizzly Bear
Halloween Karaoke at Luvwoo Bar (FREE)
Sat, Oct 31, 9:00 AM
St. Louis · Luvwoo Bar
Halloween Karaoke at Luvwoo Bar (FREE)
Sat, Oct 31, 9:00 AM
St. Louis · Luvwoo Bar
St. Louis Halloween Bar Crawl
Sat, Oct 24, 4:00 PM
St. Louis · Great Grizzly Bear
St. Louis Halloween Bar Crawl
Sat, Oct 24, 4:00 PM
St. Louis · Great Grizzly Bear
Galentine's Day at Chandler Hill Vineyards
Sun, Feb 8, 11:00 AM
Defiance · Chandler Hill Vineyards
Galentine's Day at Chandler Hill Vineyards
Sun, Feb 8, 11:00 AM
Defiance · Chandler Hill Vineyards
VALENTINE MASQUERADE PARTY
Sat, Feb 7, 7:00 PM
Saint Charles · 111 Compass Point Dr
VALENTINE MASQUERADE PARTY
Sat, Feb 7, 7:00 PM
Saint Charles · 111 Compass Point Dr
Party Zone
Sat, Feb 14, 10:00 AM
St. Louis · 1532 S 8th St
Party Zone
Sat, Feb 14, 10:00 AM
St. Louis · 1532 S 8th St
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Jan 30th
Cottleville · Public School House
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Jan 30th
Cottleville · Public School House
Bud Light Party Tent
Sat, Feb 14, 9:00 AM
St. Louis · Bud Light Party Centre & Activation Tent (Soulard Market Park & Plaza)
Bud Light Party Tent
Sat, Feb 14, 9:00 AM
St. Louis · Bud Light Party Centre & Activation Tent (Soulard Market Park & Plaza)
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 6th
Cottleville · Public School House
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 6th
Cottleville · Public School House
Love Shack! A Valentine's Day Pop-Up Bar on Feb 7th
Cottleville · Public School House
Love Shack! A Valentine's Day Pop-Up Bar on Feb 7th
Cottleville · Public School House
St. Patrick's Day Parade 2026
Tue, Mar 17, 4:00 PM
Saint Charles · Main Street
St. Patrick's Day Parade 2026
Tue, Mar 17, 4:00 PM
Saint Charles · Main Street
Selling quickly
TBGC Galentines Day Party
Sun, Feb 1, 2:00 PM
University City · 6701 Delmar Blvd
Selling quickly
TBGC Galentines Day Party
Sun, Feb 1, 2:00 PM
University City · 6701 Delmar Blvd
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 4th
Cottleville · Public School House
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 4th
Cottleville · Public School House
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 5th
Cottleville · Public School House
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 5th
Cottleville · Public School House
TALK NERDY 2 ME, A VALENTINE'S DAY COSTUME PARTY
Sat, Feb 14, 8:00 PM
Saint Charles · Two Plumbers Event Space
TALK NERDY 2 ME, A VALENTINE'S DAY COSTUME PARTY
Sat, Feb 14, 8:00 PM
Saint Charles · Two Plumbers Event Space
Bubbles with Besties Galentine's Day Event
Fri, Feb 20, 6:00 PM
Brentwood · Monarch Beauty Collective
Bubbles with Besties Galentine's Day Event
Fri, Feb 20, 6:00 PM
Brentwood · Monarch Beauty Collective
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 13th
Cottleville · Public School House
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 13th
Cottleville · Public School House
Galentines Day Tea Party - A Celebration of Sisterhood & Self-Love
Fri, Feb 13, 5:00 PM
Brentwood · The Brentwood Community Center
Galentines Day Tea Party - A Celebration of Sisterhood & Self-Love
Fri, Feb 13, 5:00 PM
Brentwood · The Brentwood Community Center
Love Shack! A Valentine's Day Pop-Up Bar on Feb 12th
Cottleville · Public School House
Love Shack! A Valentine's Day Pop-Up Bar on Feb 12th
Cottleville · Public School House
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 11th
Cottleville · Public School House
Almost full
Love Shack! A Valentine's Day Pop-Up Bar on Feb 11th
Cottleville · Public School House

Trends in O'fallon

Explore more trends

The Official Halloween Bar Crawl (Fri & Sat) - St Louis

The Official Halloween Bar Crawl (Fri & Sat) - St Louis

Halloween Karaoke at Luvwoo Bar (FREE)

Halloween Karaoke at Luvwoo Bar (FREE)

St. Louis Halloween Bar Crawl

St. Louis Halloween Bar Crawl

Galentine's Day at Chandler Hill Vineyards

Galentine's Day at Chandler Hill Vineyards

VALENTINE MASQUERADE PARTY

VALENTINE MASQUERADE PARTY

Party Zone

Party Zone

Love Shack! A Valentine's Day Pop-Up Bar on Jan 30th

Love Shack! A Valentine's Day Pop-Up Bar on Jan 30th

Bud Light Party Tent

Bud Light Party Tent

Love Shack! A Valentine's Day Pop-Up Bar on Feb 6th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 6th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 7th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 7th

St. Patrick's Day Parade 2026

St. Patrick's Day Parade 2026

TBGC Galentines Day Party

TBGC Galentines Day Party

Love Shack! A Valentine's Day Pop-Up Bar on Feb 4th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 4th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 5th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 5th

TALK NERDY 2 ME, A VALENTINE'S DAY COSTUME PARTY

TALK NERDY 2 ME, A VALENTINE'S DAY COSTUME PARTY

Bubbles with Besties Galentine's Day Event

Bubbles with Besties Galentine's Day Event

Love Shack! A Valentine's Day Pop-Up Bar on Feb 13th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 13th

Galentines Day Tea Party - A Celebration of Sisterhood & Self-Love

Galentines Day Tea Party - A Celebration of Sisterhood & Self-Love

Love Shack! A Valentine's Day Pop-Up Bar on Feb 12th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 12th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 11th

Love Shack! A Valentine's Day Pop-Up Bar on Feb 11th

Things to do around O'fallon

Trends in O'fallon

1. New years eve

2. Events happening today near me

3. Christmas

4. Couples

5. Trivia

6. Kids

7. Singles

8. Crafts fair

9. Free kids events

10. Job fairs

11. Fireworks show

12. Puppy yoga