find Halloween events for every vibe.

Best events in
Longmont

Looking for something to do in Longmont? Whether you're a local, new in town or just cruising through we've got loads of great tips and events. You can explore by location, what's popular, our top picks, free stuff... you got this. Ready?

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Popular in Longmont

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Feria del Tamal 2025

Today • 4:00 PM

Boulder County Fairgrounds Exhibit Building

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Spooky BNI HOWLoween Party

Wednesday • 5:30 PM

2901 S Flat Cir

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Axe Me Out Halloween Party

Fri, Oct 31 • 7:00 PM

Axe Me Out

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Murder Mystery Show

Fri, Nov 7 • 6:00 PM

2251 Ken Pratt Blvd ste a

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House of Worship Safety & Security Seminar

Sat, Nov 15 • 9:00 AM

LifeBridge Christian Church

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Detoxed & Dangerous - Sober Stand-Up Comedy

Sat, Nov 15 • 6:00 PM

Longmont Museum

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Self Defense for Women (Longmont Residents Only)

Sat, Dec 6 • 5:00 PM

10916 County Rd 5

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Ugly Sweater 5k @ Left Hand Brewing Co. | 2025 CO Brewery Running Series

Sat, Dec 6 • 10:00 AM

Left Hand Brewing Company

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Feria del Tamal 2025

Today • 4:00 PM

Boulder County Fairgrounds Exhibit Building

Check ticket price on event

Spooky BNI HOWLoween Party

Wednesday • 5:30 PM

2901 S Flat Cir

Check ticket price on event

Axe Me Out Halloween Party

Fri, Oct 31 • 7:00 PM

Axe Me Out

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Murder Mystery Show

Fri, Nov 7 • 6:00 PM

2251 Ken Pratt Blvd ste a

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House of Worship Safety & Security Seminar

Sat, Nov 15 • 9:00 AM

LifeBridge Christian Church

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Detoxed & Dangerous - Sober Stand-Up Comedy

Sat, Nov 15 • 6:00 PM

Longmont Museum

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Self Defense for Women (Longmont Residents Only)

Sat, Dec 6 • 5:00 PM

10916 County Rd 5

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Ugly Sweater 5k @ Left Hand Brewing Co. | 2025 CO Brewery Running Series

Sat, Dec 6 • 10:00 AM

Left Hand Brewing Company

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Online Events

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Content Insiders

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Career Fair: Exclusive Tech Hiring Event-New Tickets Available

Friday • 9:00 AM PDT

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San Jose Career Fair

Thu, Nov 6 • 9:30 AM PST

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How to Do a Venture Capital Financing

Wed, Nov 12 • 9:00 AM PST

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Lean Global Connection 2025

Thu, Nov 13 • 2:00 PM UTC

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Research Learning Lectures

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Washington DC Hiring Event

Tue, Dec 2 • 9:30 AM EST

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NASA’s X-59 First Flight

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Content Insiders

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Career Fair: Exclusive Tech Hiring Event-New Tickets Available

Friday • 9:00 AM PDT

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San Jose Career Fair

Thu, Nov 6 • 9:30 AM PST

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How to Do a Venture Capital Financing

Wed, Nov 12 • 9:00 AM PST

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Lean Global Connection 2025

Thu, Nov 13 • 2:00 PM UTC

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Research Learning Lectures

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Washington DC Hiring Event

Tue, Dec 2 • 9:30 AM EST

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NASA’s X-59 First Flight

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Seasonal & Holiday events

Spooky BNI HOWLoween Party

Wednesday • 5:30 PM

2901 S Flat Cir

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Axe Me Out Halloween Party

Fri, Oct 31 • 7:00 PM

Axe Me Out

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2025 Harvest Party

Friday • 6:00 AM

1450 Martin St

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5th Annual SJB Christmas Market

Fri, Dec 5 • 4:00 PM

323 Collyer St

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Spooky BNI HOWLoween Party

Wednesday • 5:30 PM

2901 S Flat Cir

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Axe Me Out Halloween Party

Fri, Oct 31 • 7:00 PM

Axe Me Out

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2025 Harvest Party

Friday • 6:00 AM

1450 Martin St

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5th Annual SJB Christmas Market

Fri, Dec 5 • 4:00 PM

323 Collyer St

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Free events

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Spooky BNI HOWLoween Party

Wednesday • 5:30 PM

2901 S Flat Cir

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Axe Me Out Halloween Party

Fri, Oct 31 • 7:00 PM

Axe Me Out

Check ticket price on event

2025 Harvest Party

Friday • 6:00 AM

1450 Martin St

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Longmont World Day of Remembrance

Wed, Nov 5 • 6:00 PM

Longmont Museum

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Veteran's Build

Fri, Nov 14 • 6:00 PM

1351 Sherman Dr

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Marconics Ascension Energy Lecture and Free Energy Samples

Sun, Nov 16 • 4:00 PM

Anahata

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CSU Extension Boulder County - Hands-On Training with Soil Moisture Probes

Tue, Nov 18 • 9:30 AM

Colorado State University Ext

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Self Defense for Women (Longmont Residents Only)

Sat, Dec 6 • 5:00 PM

10916 County Rd 5

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Spooky BNI HOWLoween Party

Wednesday • 5:30 PM

2901 S Flat Cir

Check ticket price on event

Axe Me Out Halloween Party

Fri, Oct 31 • 7:00 PM

Axe Me Out

Check ticket price on event

2025 Harvest Party

Friday • 6:00 AM

1450 Martin St

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Longmont World Day of Remembrance

Wed, Nov 5 • 6:00 PM

Longmont Museum

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Veteran's Build

Fri, Nov 14 • 6:00 PM

1351 Sherman Dr

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Marconics Ascension Energy Lecture and Free Energy Samples

Sun, Nov 16 • 4:00 PM

Anahata

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CSU Extension Boulder County - Hands-On Training with Soil Moisture Probes

Tue, Nov 18 • 9:30 AM

Colorado State University Ext

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Self Defense for Women (Longmont Residents Only)

Sat, Dec 6 • 5:00 PM

10916 County Rd 5

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Points of Interest near Longmont

Mcintosh Lake

Jim Hamm Nature Area

Rough Ready Park