Longmont Halloween Events 2026
Your guide to the best Halloween events in Longmont and nearby
Longmont delivers Halloween 2026 with haunted tours and spine-chilling activities across recognizable sites like the historic downtown.
The season brings supernatural tours, pumpkin festivities, and Halloween parties including outdoor scares, family events, and costume parades.
Editor's Picks
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Day of the Dead Celebrations
Colorado’s longest-running public Day of the Dead celebration.
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Rocky Mountain Pumpkin Ranch Fall Festival & Carnival
Certified Organic pumpkins and produce from a family-run farm
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45th Annual Halloween Parade and Trick-or-Treat Street
Costumed parade down Main Street followed by business trick-or-treating.
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Haunt the ‘Mont
Adult trick-or-treat business crawl and costume party benefiting local schools.
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Noche de Museo: Celebrating Day of the Dead
Live Aztec dance and rock performances celebrating Día de Muertos.
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St. Vrain Trunk or Treat / Fall Festival
Community trunk-or-treat gathering open to all attendees.
Events Happening Soon
Browse Halloween Near Longmont by Category
Family-Friendly Fall Activities
Certified Organic pumpkins and produce from a family-run farm
Halloween Food, Drink, and Parties
Adult trick-or-treat business crawl and costume party benefiting local schools.
Haunted Experiences
Haunted corn maze, line entertainment, and fall farm attractions in LaSalle.
Halloween Movies, Theater, and Entertainment
Live Aztec dance and rock performances celebrating Día de Muertos.
Unique & Unusual Halloween Events
Colorado’s longest-running public Day of the Dead celebration.
Latest News & Updates
Stay informed about Halloween events and activities in Longmont
- Longmont Theatre Company Presents Rocky Horror Show Published: Sun, Oct 4, 2026
- Longmont Community Fair Features Halloween Shop Published: Mon, Sep 28, 2026
Longmont Halloween Events Map
See every Halloween event, haunted attraction, and pumpkin patch on one map.
