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Free Events and Things to do in Boulder, CO

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The Colorado River's Uncertain Water Future Explained
Fri, Aug 21, 6:00 PM
Boulder · Wolf Law Building
The Colorado River's Uncertain Water Future Explained
Fri, Aug 21, 6:00 PM
Boulder · Wolf Law Building
THE KIRTAN EXPERIENCE: BOULDER
Today at 6:30 PM
Boulder · Embassy Suites by Hilton Boulder
THE KIRTAN EXPERIENCE: BOULDER
Today at 6:30 PM
Boulder · Embassy Suites by Hilton Boulder
Worth The Trip 2
Thu, Sep 3, 5:30 PM
Lafayette · Bounce Empire
Worth The Trip 2
Thu, Sep 3, 5:30 PM
Lafayette · Bounce Empire
Volunteer Community Celebration - Featuring Superstar DJ DuckLaRock
Monday at 6:00 PM
Boulder · Junkyard Social Club
Volunteer Community Celebration - Featuring Superstar DJ DuckLaRock
Monday at 6:00 PM
Boulder · Junkyard Social Club
2026 Celebrate Longmont
Wed, Sep 9, 5:00 PM
Longmont · Summit Tacos
2026 Celebrate Longmont
Wed, Sep 9, 5:00 PM
Longmont · Summit Tacos
13 Fires Canyon Theater
Tomorrow at 6:00 PM
Boulder · Canyon Theater - Boulder Public Library
13 Fires Canyon Theater
Tomorrow at 6:00 PM
Boulder · Canyon Theater - Boulder Public Library
Colorado Tap House Adult Book Fair
Sun, Aug 30, 12:00 PM
Arvada · Colorado Tap House
Colorado Tap House Adult Book Fair
Sun, Aug 30, 12:00 PM
Arvada · Colorado Tap House
BStrong Ride Pre-Race Dinner
Today at 5:00 PM
Boulder · Scout Clean Energy
BStrong Ride Pre-Race Dinner
Today at 5:00 PM
Boulder · Scout Clean Energy
2026 Mattress Recycling Drop-off Event
Sat, Aug 29, 8:00 AM
Thornton · Thornton's Infrastructure Maintenance Center
2026 Mattress Recycling Drop-off Event
Sat, Aug 29, 8:00 AM
Thornton · Thornton's Infrastructure Maintenance Center
August Colorado Manufacturing Happy Hour
Wednesday at 4:00 PM
Lafayette · 1380 Horizon Ave
August Colorado Manufacturing Happy Hour
Wednesday at 4:00 PM
Lafayette · 1380 Horizon Ave
Stargazing at Eldorado Canyon State Park
Fri, Aug 14, 7:30 PM
Eldorado Springs · Eldorado Canyon State Park Visitor Center
Stargazing at Eldorado Canyon State Park
Fri, Aug 14, 7:30 PM
Eldorado Springs · Eldorado Canyon State Park Visitor Center
Mountain Research Station Anniversary Open House
Wed, Aug 19, 7:30 AM
Nederland · Mountain Research Station
Mountain Research Station Anniversary Open House
Wed, Aug 19, 7:30 AM
Nederland · Mountain Research Station
Makers Lab
Fri, Aug 21, 10:00 AM
Westminster · 1575 W 124th Ave suite 110
Makers Lab
Fri, Aug 21, 10:00 AM
Westminster · 1575 W 124th Ave suite 110
Boulder County Trunk or Treat
Tue, Oct 20, 4:00 PM
Boulder · Boulder County Sheriff's Office
Boulder County Trunk or Treat
Tue, Oct 20, 4:00 PM
Boulder · Boulder County Sheriff's Office
Bikepacking 101 at Boulder Bicycle Works
Sun, Aug 16, 5:00 PM
Boulder · Boulder Bicycle Works
Bikepacking 101 at Boulder Bicycle Works
Sun, Aug 16, 5:00 PM
Boulder · Boulder Bicycle Works
Boulder Career Fair
Wed, Aug 26, 9:30 AM
Boulder · Hilton
Boulder Career Fair
Wed, Aug 26, 9:30 AM
Boulder · Hilton
BUBBLEPALOOZA
Tomorrow at 11:00 AM
Arvada · 7490 W 52nd Ave
BUBBLEPALOOZA
Tomorrow at 11:00 AM
Arvada · 7490 W 52nd Ave
Lily Williams -- "Exposures," with Holly Grant
Thu, Aug 20, 6:30 PM
Boulder · Boulder Bookstore
Lily Williams -- "Exposures," with Holly Grant
Thu, Aug 20, 6:30 PM
Boulder · Boulder Bookstore
Gather & Glow | 5th Annual Spa Open House at BVPS
Fri, Sep 18, 3:00 PM
Boulder · Boulder Valley Plastic Surgery
Gather & Glow | 5th Annual Spa Open House at BVPS
Fri, Sep 18, 3:00 PM
Boulder · Boulder Valley Plastic Surgery
Griefy Book Fair
Sun, Aug 30, 3:00 PM
Lafayette · Foxglove Bar and Hideout
Griefy Book Fair
Sun, Aug 30, 3:00 PM
Lafayette · Foxglove Bar and Hideout

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:

The Colorado River's Uncertain Water Future Explained

Worth The Trip 2

Volunteer Community Celebration - Featuring Superstar DJ DuckLaRock

2026 Celebrate Longmont

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:

BStrong Ride Pre-Race Dinner

THE KIRTAN EXPERIENCE: BOULDER

13 Fires Canyon Theater