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Festivals in Longmont, CO

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

Leftapalooza 2026, Presented by Colorado Materials
Sat, Jun 27, 10:30 AM
Longmont · The Garden at Left Hand Brewing
Leftapalooza 2026, Presented by Colorado Materials
Sat, Jun 27, 10:30 AM
Longmont · The Garden at Left Hand Brewing
Boulder Comedy Festival at Niwot Hall
Tue, Jun 16, 7:00 PM
Niwot · Niwot Hall
Boulder Comedy Festival at Niwot Hall
Tue, Jun 16, 7:00 PM
Niwot · Niwot Hall
Sales end soon
Acreage BAZAAR
Today at 11:00 AM
Lafayette · Acreage by Stem Ciders
Sales end soon
Acreage BAZAAR
Today at 11:00 AM
Lafayette · Acreage by Stem Ciders
Boulder Roots Music Fest 2026 (Aug-27-30)
Thu, Aug 27, 6:00 PM
Boulder · Pearl Street Mall
Boulder Roots Music Fest 2026 (Aug-27-30)
Thu, Aug 27, 6:00 PM
Boulder · Pearl Street Mall
Sales end soon
Boulder Creek Festival / Creekside Beer Fest(May 24)
Today at 12:00 PM
Boulder · Boulder Creek Festival/Creekside Beer Fest
Sales end soon
Boulder Creek Festival / Creekside Beer Fest(May 24)
Today at 12:00 PM
Boulder · Boulder Creek Festival/Creekside Beer Fest
Boulder Comedy Festival at Junkyard Social
Wed, Jun 17, 7:00 PM
Boulder · Junkyard Social Club
Boulder Comedy Festival at Junkyard Social
Wed, Jun 17, 7:00 PM
Boulder · Junkyard Social Club
Boulder Comedy Festival at The End at Dog House Music
Sat, Jun 20, 2:00 PM
Lafayette · Dog House Music Studios
Boulder Comedy Festival at The End at Dog House Music
Sat, Jun 20, 2:00 PM
Lafayette · Dog House Music Studios
BLISS, Sacred Sound Fest
Fri, Aug 14, 2:00 PM
Longmont · Wild Cider
BLISS, Sacred Sound Fest
Fri, Aug 14, 2:00 PM
Longmont · Wild Cider
Rolling Harvest & Poorfree: Dylan, Young & Mountain Soul
Fri, Jul 31, 8:00 PM
Boulder · Roots Music Project
Rolling Harvest & Poorfree: Dylan, Young & Mountain Soul
Fri, Jul 31, 8:00 PM
Boulder · Roots Music Project
The Taste
Thu, Jun 11, 5:00 PM
Loveland · Forge Event Center
The Taste
Thu, Jun 11, 5:00 PM
Loveland · Forge Event Center
LunaFest '26 - It's back, with a vengeance!
Mon, Jun 15, 3:00 PM
Longmont · Grossen Bart Brewery
LunaFest '26 - It's back, with a vengeance!
Mon, Jun 15, 3:00 PM
Longmont · Grossen Bart Brewery
American Legion 4th of July/250th Birthday Celebration
Sat, Jul 4, 10:00 AM
Firestone · 870 1st Street
American Legion 4th of July/250th Birthday Celebration
Sat, Jul 4, 10:00 AM
Firestone · 870 1st Street
3rd Annual Hallowine Festival
Sat, Oct 10, 11:00 AM
Johnstown · SILO PARK, River Ranch Parkway
3rd Annual Hallowine Festival
Sat, Oct 10, 11:00 AM
Johnstown · SILO PARK, River Ranch Parkway
BREATHE INTO YOUR POWER
Sat, Jun 20, 2:00 PM
Thornton · Harley Brown Amphitheater
BREATHE INTO YOUR POWER
Sat, Jun 20, 2:00 PM
Thornton · Harley Brown Amphitheater
11th Annual Estes Park Wine Festival
Sat, Aug 8, 11:00 AM
Estes Park · Bond Park, Downtown, Estes Park, CO
11th Annual Estes Park Wine Festival
Sat, Aug 8, 11:00 AM
Estes Park · Bond Park, Downtown, Estes Park, CO
Rocky Mountain Book and Paper Fair
Fri, Aug 14, 2:00 PM + 1 more
Loveland · Pedersen Toyota Center
Rocky Mountain Book and Paper Fair
Fri, Aug 14, 2:00 PM + 1 more
Loveland · Pedersen Toyota Center
14th Annual Front Range Wine Festival
Sat, Aug 15, 11:00 AM
Windsor · Main Park
14th Annual Front Range Wine Festival
Sat, Aug 15, 11:00 AM
Windsor · Main Park
Belgian Brew Fest 2026
Sat, Aug 22, 1:00 PM
Denver · Bruz Beers
Belgian Brew Fest 2026
Sat, Aug 22, 1:00 PM
Denver · Bruz Beers
40th Annual Wheels for Meals Car Show & Fundraiser
Sun, May 31, 8:00 AM
Fort Collins · Ed Carroll Motor Co.
40th Annual Wheels for Meals Car Show & Fundraiser
Sun, May 31, 8:00 AM
Fort Collins · Ed Carroll Motor Co.
2nd Annual Golden Wine Festival
Sat, Oct 3, 11:00 AM
Golden · Tony Grampsas Memorial Sports Complex - Golden Bike Park
2nd Annual Golden Wine Festival
Sat, Oct 3, 11:00 AM
Golden · Tony Grampsas Memorial Sports Complex - Golden Bike Park

Trends in Longmont

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Frequently asked questions about Longmont

What are the best festival events to attend?

According to Eventbrite, the best festival events are:

Leftapalooza 2026, Presented by Colorado Materials

Boulder Comedy Festival at Niwot Hall

Boulder Roots Music Fest 2026 (Aug-27-30)

Boulder Comedy Festival at Junkyard Social

Which events are currently trending in Longmont?

The trending searches this month in Longmont are:

memorial day events

children activities

Which festival events are coming up?

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

Boulder Creek Festival / Creekside Beer Fest(May 24)

40th Annual Wheels for Meals Car Show & Fundraiser