Your version of Internet Explorer is no longer supported. Please upgrade your browser.

Free Events and Things to do in Longmont, CO

Search for something you love or check out popular events in your area.

Dr. Martin Luther King Jr. Convocation 2027
Thu, Jan 14, 6:00 PM
Boulder · University Memorial Center, Glenn Miller Ballroom
Dr. Martin Luther King Jr. Convocation 2027
Thu, Jan 14, 6:00 PM
Boulder · University Memorial Center, Glenn Miller Ballroom
Sales end soon
Humans vs Zombies: CyberStrike 2026
Friday at 7:00 PM
Boulder · CU Boulder Engineering
Sales end soon
Humans vs Zombies: CyberStrike 2026
Friday at 7:00 PM
Boulder · CU Boulder Engineering
Almost full
Rocky Mountain Workshop on Trustworthy and Responsible AI
Wed, Nov 4, 8:00 AM
Boulder · 4001 Discovery Dr
Almost full
Rocky Mountain Workshop on Trustworthy and Responsible AI
Wed, Nov 4, 8:00 AM
Boulder · 4001 Discovery Dr
Sales end soon
Boulder County Water Development Seminar: Past, Present, and Future
Saturday at 8:00 AM
Boulder · Unitarian Universalist Church of Boulder
Sales end soon
Boulder County Water Development Seminar: Past, Present, and Future
Saturday at 8:00 AM
Boulder · Unitarian Universalist Church of Boulder
Sales end soon
P.O.V
Friday at 6:30 PM
Boulder · ATLAS Institute, University of Colorado Boulder
Sales end soon
P.O.V
Friday at 6:30 PM
Boulder · ATLAS Institute, University of Colorado Boulder
Selling fast
Boulder Career Fair
Tue, Dec 8, 9:30 AM
Boulder · Marriott
Selling fast
Boulder Career Fair
Tue, Dec 8, 9:30 AM
Boulder · Marriott
Niwot High School Fall 2026
Wed, Nov 11, 6:00 PM
Niwot · Niwot High School
Niwot High School Fall 2026
Wed, Nov 11, 6:00 PM
Niwot · Niwot High School
Harnessing Sunlight & Mentoring Startup Founders to Address Climate Change
Wed, Nov 18, 4:00 PM
Boulder · Chancellor's Hall and Auditorium, Center for Academic Success and Engagement (CASE)
Harnessing Sunlight & Mentoring Startup Founders to Address Climate Change
Wed, Nov 18, 4:00 PM
Boulder · Chancellor's Hall and Auditorium, Center for Academic Success and Engagement (CASE)
Almost full
A Spice of Life Catering Open House
Thu, Nov 12, 3:00 PM
Boulder · A Spice of Life Catering
Almost full
A Spice of Life Catering Open House
Thu, Nov 12, 3:00 PM
Boulder · A Spice of Life Catering
Almost full
Cabi On Tour Erie, CO
Tue, Nov 10, 6:00 PM
Erie · 2190 Driver Ln
Almost full
Cabi On Tour Erie, CO
Tue, Nov 10, 6:00 PM
Erie · 2190 Driver Ln
BioFrontiers Presents: Saad Bhamla
Tue, Nov 17, 6:00 PM
Boulder · Jennie Smoly Caruthers Biotechnology Building, Room A115 (Butcher Auditorium)
BioFrontiers Presents: Saad Bhamla
Tue, Nov 17, 6:00 PM
Boulder · Jennie Smoly Caruthers Biotechnology Building, Room A115 (Butcher Auditorium)
Embrace the Jog Track Meet
Sun, Nov 8, 1:30 PM
Boulder · Centennial Middle School
Embrace the Jog Track Meet
Sun, Nov 8, 1:30 PM
Boulder · Centennial Middle School
World Literature Lecture Series
Mon, Feb 22, 6:30 PM + 1 more
Boulder · Boulder Book Store
World Literature Lecture Series
Mon, Feb 22, 6:30 PM + 1 more
Boulder · Boulder Book Store
Grand Opening Party - JETSET Pilates Boulder Crossroads
Sunday at 11:00 AM
Boulder · 3000 Pearl Pkwy
Grand Opening Party - JETSET Pilates Boulder Crossroads
Sunday at 11:00 AM
Boulder · 3000 Pearl Pkwy
Sales end soon
Dark Disko
Friday at 10:00 PM
Boulder · Rosetta Hall
Sales end soon
Dark Disko
Friday at 10:00 PM
Boulder · Rosetta Hall
Sales end soon
VCP of Longmont Village Tours
Wednesday at 4:00 PM + 4 more
Longmont · Veterans Community Project of Longmont
Sales end soon
VCP of Longmont Village Tours
Wednesday at 4:00 PM + 4 more
Longmont · Veterans Community Project of Longmont
Sales end soon
NSF NCAR Mesa Laboratory Public Tour
Wednesday at 12:00 PM + 25 more
Boulder · NSF NCAR Mesa Laboratory
Sales end soon
NSF NCAR Mesa Laboratory Public Tour
Wednesday at 12:00 PM + 25 more
Boulder · NSF NCAR Mesa Laboratory
Sales end soon
Boulder Book Celebration with Moudi Sbeity
Wednesday at 6:00 PM
Boulder · Trident Booksellers and Cafe
Sales end soon
Boulder Book Celebration with Moudi Sbeity
Wednesday at 6:00 PM
Boulder · Trident Booksellers and Cafe
Sales end soon
Where Are My Keys? Mental Fog, Memory & the Perimenopausal Brain
Tomorrow at 5:45 PM
Boulder · Alive and Well
Sales end soon
Where Are My Keys? Mental Fog, Memory & the Perimenopausal Brain
Tomorrow at 5:45 PM
Boulder · Alive and Well
Longmont After-Work Business Networking | NIA Wolfpack
Tue, Nov 10, 4:30 PM + 13 more
Longmont · The Longmont Social
Longmont After-Work Business Networking | NIA Wolfpack
Tue, Nov 10, 4:30 PM + 13 more
Longmont · The Longmont Social

Trends in Longmont

Explore more trends

Explore more trends

Frequently asked questions about Longmont

What are the best free events to attend?

According to Eventbrite, the best free events are:

Dr. Martin Luther King Jr. Convocation 2027

Humans vs Zombies: CyberStrike 2026

Rocky Mountain Workshop on Trustworthy and Responsible AI

Boulder County Water Development Seminar: Past, Present, and Future

Which events are currently trending in Longmont?

The trending searches this month in Longmont are:

halloween events

events happening today near me

Which free events are coming up?

Discover the best free events happening soon – you don't want to miss them:

Where Are My Keys? Mental Fog, Memory & the Perimenopausal Brain

NSF NCAR Mesa Laboratory Public Tour

VCP of Longmont Village Tours

Boulder Book Celebration with Moudi Sbeity