Haunt the ‘Mont
Adult trick-or-treat business crawl and costume party benefiting local schools.
Longmont Halloween Food, Drink, and Parties 2026
15 Halloween food, drink, and parties in Longmont and nearby.
Longmont's biggest Halloween celebration, Haunt the 'Mont, brings the scares and fun right to our doorstep. For those looking further afield, Coloween offers a massive Denver party.
From ticketed adult gatherings to free costume contests and family-friendly outings, explore where to celebrate October in Longmont and nearby.
All Halloween Food, Drink, and Parties Around Longmont
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Family-Friendly Fall Activities
1 of 42
Rocky Mountain Pumpkin Ranch Fall Festival & Carnival
Longmont
Certified Organic pumpkins and produce from a family-run farm
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Haunted Experiences
1 of 14
Fritzler Fritzler Scream Acres Haunted Attraction
LaSalle
Haunted corn maze, line entertainment, and fall farm attractions in LaSalle.
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Movies, Theater, and Entertainment
1 of 7
Noche de Museo: Celebrating Day of the Dead
Longmont
Live Aztec dance and rock performances celebrating Día de Muertos.
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Unique & Unusual
1 of 10
Day of the Dead Celebrations
Longmont
Colorado’s longest-running public Day of the Dead celebration.
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See all Halloween parties, events, and celebrations in your area.
Frequently Asked Questions
What's the backup plan when a Halloween party in Longmont sells out?
Move fast sideways: the same night usually holds three comparable parties one tier less famous, and bars around the sold-out venue absorb the overflow crowd with no cover. Check for official resale or waitlist options rather than sketchy third-party tickets, since Halloween is peak fake-ticket season. Book the backup as soon as the first choice wobbles, not at 9 pm that night.
How should our group handle rides home from Halloween parties in Longmont?
Decide the ride plan before the first drink: one sober driver with a named thank-you gift, or rideshares with a preset pickup pin a block from the venue, since surge zones at closing are chaos. Halloween Saturday surge pricing peaks 1-2 am, so leaving 30 minutes before close saves real money. Share live locations within the group until everyone's home.
Will face paint or a mask cause ID problems at bars in Longmont?
Masks come off at every door, no exceptions, so plan your costume around that moment. Heavy face paint usually passes if your face still matches your ID, but full-coverage prosthetics can trigger a secondary check. Carry a physical ID, not a phone photo, keep it in the same pocket all night, and let the makeup half of a couple hold the tickets.