Boulder Halloween Events

Halloween events Happening Next in Boulder, CO

Melvin Seals & JGB feat. Liquid JPEG Halloween Light Show (2 Nights!) | Boulder Theater

 Boulder Theater 31 Oct 2025
MUSIC

The Official Halloween Bar Crawl - Boulder

 The Spotted James 1 Nov 2025
PARTIES USD 13 TO 18

Waylon Wyatt

 Fox Theatre - Boulder 31 Oct 2025
ART

2025 Boulder County Trunk or Treat

 Boulder County Sheriff's Office 14 Oct 2025
HALLOWEEN FREE