Festivals in Longmont

Check out happening festivals events all around Longmont, CO

Longmont Celebrates Cinco de Mayo 2026

 Sat, 02 May at 10:30 am Roosevelt Park USD 100 to 130

Dank Grass 2026 - Beer and Bluegrass Festival

 Sat, 18 Apr at 11:00 am 1640 S Sunset St, Longmont, CO 80501

2026 Alpaca Extravaganza - Free to Public

 Sat, 28 Feb at 09:00 am Boulder County Fairgrounds

Winterfest 2026: Ice Climbing World Cup

 Sat, 21 Feb at 12:00 pm 155 Pinnacle St, Longmont, CO, United States, Colorado 80504

Los Cheesies at Bootstrap Brewing

 Sat, 28 Feb at 06:00 pm Bootstrap Brewing

Longmont Dog Days

 Sat, 06 Jun at 11:00 am Großen Bart Brewery

Colorado Tartan Day Festival

 Sat, 11 Apr at 09:00 am Boulder County Fairgrounds

Advance Longmont Economic Summit

 Tue, 24 Feb at 08:00 am The St Vrain USD 49

MIXTAPE: Songwriter Showcase featuring John Statz and Martin Gilmore

 Thu, 12 Mar at 07:30 pm The Times Collaborative USD 18

Soundpost Sessions SPOTLIGHT: Spencer LaJoye w/ Liz Barnez

 Thu, 26 Mar at 07:30 pm The Times Collaborative USD 18

Future Ready Festival: Experience the St. Vrain Advantage

 Sat, 07 Mar at 02:00 pm Silver Creek High School

MIXTAPE: Songwriter Showcase featuring Bill Huston and Monica LaBonte

 Thu, 28 May at 07:30 pm The Times Collaborative USD 18

BLISS, Sacred Sound Fest

 Fri, 14 Aug at 02:00 pm Wild Cider USD 22 to 222

Soundpost Sessions SPOTLIGHT: The Cross-Eyed Possum w/ Travis McNamara

 Thu, 14 May at 07:30 pm The Times Collaborative USD 18

40th Anniversary Spring Quilt Sale

Sat, 07 Mar at 09:00 am First Lutheran Church at 3rd and Terry St., Longmont, CO

LunaFest '26 - It's back, with a vengeance!

 Mon, 15 Jun at 03:00 pm Grossen Bart Brewery Free