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Free Events and Things to do in Boulder, CO

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Almost full
lululemon Sculpt + Shop with Arvada Barre
Sunday at 9:30 AM
Broomfield · lululemon, West Flatiron Circle, Broomfield, CO, USA
Almost full
lululemon Sculpt + Shop with Arvada Barre
Sunday at 9:30 AM
Broomfield · lululemon, West Flatiron Circle, Broomfield, CO, USA
The Future at Work: Techstars Workforce Development Demo Day
Thu, Jun 4, 6:00 PM
Boulder · eTown Hall
The Future at Work: Techstars Workforce Development Demo Day
Thu, Jun 4, 6:00 PM
Boulder · eTown Hall
Sales end soon
Neptune x Raide Bash
Thursday at 7:00 PM
Boulder · Neptune Mountaineering
Sales end soon
Neptune x Raide Bash
Thursday at 7:00 PM
Boulder · Neptune Mountaineering
Eldorado Canyon State Park BioBlitz Dayz!
Saturday at 9:00 AM
Eldorado Springs · Eldorado Canyon State Park
Eldorado Canyon State Park BioBlitz Dayz!
Saturday at 9:00 AM
Eldorado Springs · Eldorado Canyon State Park
Going fast
Full Moon Sunrise Hike - Wake up to Wonder!
Sunday at 4:15 AM
Boulder · Royal Arch Trail Head
Going fast
Full Moon Sunrise Hike - Wake up to Wonder!
Sunday at 4:15 AM
Boulder · Royal Arch Trail Head
Sales end soon
The Swoon Society Book Club: May 2026
Tomorrow at 6:00 PM
Erie · Briggs Street Books and Music
Sales end soon
The Swoon Society Book Club: May 2026
Tomorrow at 6:00 PM
Erie · Briggs Street Books and Music
Almost full
Stories in the Park: Louisville Community Park
Fri, Jun 5, 10:15 AM
Louisville · Louisville Community Park
Almost full
Stories in the Park: Louisville Community Park
Fri, Jun 5, 10:15 AM
Louisville · Louisville Community Park
Going fast
LUNA Kick off training
Sunday at 8:00 AM
Boulder · 6950 Gross Dam Rd
Going fast
LUNA Kick off training
Sunday at 8:00 AM
Boulder · 6950 Gross Dam Rd
Going fast
Renegade Motherhood Mixer for Moms in Business - Lafayette
Tue, Jun 9, 9:00 AM
Lafayette · Confluence Small Business Collective
Going fast
Renegade Motherhood Mixer for Moms in Business - Lafayette
Tue, Jun 9, 9:00 AM
Lafayette · Confluence Small Business Collective
Sales end soon
Vinita Prachi Murarka -- "Wisdom Stories of India"
Saturday at 11:00 AM
Boulder · Boulder Bookstore
Sales end soon
Vinita Prachi Murarka -- "Wisdom Stories of India"
Saturday at 11:00 AM
Boulder · Boulder Bookstore
Boulder Nova Connect + Elevate: Conscious Leadership
Tue, Jun 2, 5:00 PM
Boulder · Zeal
Boulder Nova Connect + Elevate: Conscious Leadership
Tue, Jun 2, 5:00 PM
Boulder · Zeal
Trek 50th anniversary celebration | Boulder
Sat, Jun 20, 9:00 AM
Boulder · Trek Bicycle Boulder
Trek 50th anniversary celebration | Boulder
Sat, Jun 20, 9:00 AM
Boulder · Trek Bicycle Boulder
Niwot Wellness Lecture Series
Wed, Jun 3, 6:00 PM
Niwot · Niwot Hall
Niwot Wellness Lecture Series
Wed, Jun 3, 6:00 PM
Niwot · Niwot Hall
Lija Fisher -- "The Extraordinary Adventures of the Ordinary Barney Flarff"
Wed, Jun 24, 6:30 PM
Boulder · Boulder Bookstore
Lija Fisher -- "The Extraordinary Adventures of the Ordinary Barney Flarff"
Wed, Jun 24, 6:30 PM
Boulder · Boulder Bookstore
Sales end soon
Retirement Ready
Tomorrow at 5:30 PM
Louisville · Louisville Public Library
Sales end soon
Retirement Ready
Tomorrow at 5:30 PM
Louisville · Louisville Public Library
Sales end soon
Full Moon Sunrise Hike - Wake-up to Wonder!
Sunday at 4:15 AM
Boulder · Royal Arch Trail Head
Sales end soon
Full Moon Sunrise Hike - Wake-up to Wonder!
Sunday at 4:15 AM
Boulder · Royal Arch Trail Head
Almost full
Summer Preschool Program: Animals in Louisville
Thu, Jun 11, 10:00 AM
Louisville · Louisville Historical Museum
Almost full
Summer Preschool Program: Animals in Louisville
Thu, Jun 11, 10:00 AM
Louisville · Louisville Historical Museum
Queer Romance Book Club
Wed, Jun 10, 6:00 PM
Boulder · 1909 9th St
Queer Romance Book Club
Wed, Jun 10, 6:00 PM
Boulder · 1909 9th St
June Building Connections Networking Event (N. Suburbs & Boulder Co.)
Thu, Jun 4, 4:30 PM
Louisville · John's Table
June Building Connections Networking Event (N. Suburbs & Boulder Co.)
Thu, Jun 4, 4:30 PM
Louisville · John's Table
Latte Art Throwdown at O.W.L Coffee Roasters
Fri, Jun 19, 6:00 PM
Boulder · 2355 30th St
Latte Art Throwdown at O.W.L Coffee Roasters
Fri, Jun 19, 6:00 PM
Boulder · 2355 30th St

Trends in Boulder

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Frequently asked questions about Boulder

What are the best free events to attend?

According to Eventbrite, the best free events are:

lululemon Sculpt + Shop with Arvada Barre

The Future at Work: Techstars Workforce Development Demo Day

Full Moon Sunrise Hike - Wake up to Wonder!

Stories in the Park: Louisville Community Park

Which events are currently trending in Boulder?

The trending searches this month in Boulder are:

memorial day weekend events

stand up comedy

Which free events are coming up?

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

Retirement Ready

The Swoon Society Book Club: May 2026

Neptune x Raide Bash

Eldorado Canyon State Park BioBlitz Dayz!