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find Halloween events for every vibe.

October events in O'fallon, MO

GATEway FATE 2025
Sat, Oct 18, 11:00 AM
Frenchtown · St. Charles Convention Center
GATEway FATE 2025
Sat, Oct 18, 11:00 AM
Frenchtown · St. Charles Convention Center
Almost full
The Social - STL
Wednesday at 5:00 PM
Cottleville · Public School House
Almost full
The Social - STL
Wednesday at 5:00 PM
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 18th
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 18th
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 17th
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 17th
Cottleville · Public School House
Mall Mutation Madness: Hardcore 5 - Cyber Shock Lockdown
Sat, Oct 18, 9:00 PM
St. Peters · Mid Rivers Mall
Mall Mutation Madness: Hardcore 5 - Cyber Shock Lockdown
Sat, Oct 18, 9:00 PM
St. Peters · Mid Rivers Mall
Urshan Symposium of Apostolic Pentecostal Scholars 2025
Thu, Oct 16, 12:00 PM
Wentzville · Urshan Graduate School-Theology
Urshan Symposium of Apostolic Pentecostal Scholars 2025
Thu, Oct 16, 12:00 PM
Wentzville · Urshan Graduate School-Theology
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 24th
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 24th
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 25th
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 25th
Cottleville · Public School House
Almost full
Daytox Rooftop Day Party- STL
Tomorrow at 4:00 PM
Frenchtown · Chicken N Pickle - St. Charles
Almost full
Daytox Rooftop Day Party- STL
Tomorrow at 4:00 PM
Frenchtown · Chicken N Pickle - St. Charles
Busch and Boots Music Fest
Sat, Oct 11, 4:00 PM
Missouri · Busch Family Brewing and Distilling
Busch and Boots Music Fest
Sat, Oct 11, 4:00 PM
Missouri · Busch Family Brewing and Distilling
The Ghoul House Pop Up Bar & Haunted Trail on Oct 22nd
Cottleville · Public School House
The Ghoul House Pop Up Bar & Haunted Trail on Oct 22nd
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 23rd
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 23rd
Cottleville · Public School House
Almost full
FAMILY NIGHT-The Ghoul House & Haunted Trail on Oct 19th
Cottleville · Public School House
Almost full
FAMILY NIGHT-The Ghoul House & Haunted Trail on Oct 19th
Cottleville · Public School House
SCCAD Outreach Pickleball Tournment
Sat, Oct 18, 10:00 AM
Frenchtown · Chicken N Pickle - St. Charles
SCCAD Outreach Pickleball Tournment
Sat, Oct 18, 10:00 AM
Frenchtown · Chicken N Pickle - St. Charles
The Ghoul House Pop Up Bar & Haunted Trail on Oct 30th
Cottleville · Public School House
The Ghoul House Pop Up Bar & Haunted Trail on Oct 30th
Cottleville · Public School House
Going fast
FAMILY NIGHT-The Ghoul House & Haunted Trail on Oct 26th
Cottleville · Public School House
Going fast
FAMILY NIGHT-The Ghoul House & Haunted Trail on Oct 26th
Cottleville · Public School House
Fall Fest 2025
Sat, Oct 11, 10:00 AM
Missouri · Cedar Lake Cellars
Fall Fest 2025
Sat, Oct 11, 10:00 AM
Missouri · Cedar Lake Cellars
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 29th
Cottleville · Public School House
Almost full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 29th
Cottleville · Public School House
Almost full
Knit and Sip
Wednesday at 5:30 PM
Frenchtown · Magpie's Restaurant
Almost full
Knit and Sip
Wednesday at 5:30 PM
Frenchtown · Magpie's Restaurant
100 Weddings & A Love Spell: A ShonLove Halloween Soirée
Fri, Oct 31, 7:00 PM
Gardnerville · Venue 827
100 Weddings & A Love Spell: A ShonLove Halloween Soirée
Fri, Oct 31, 7:00 PM
Gardnerville · Venue 827

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