Atom Jazz Fest 2026
📅 Aug 21, 2026, 12:00 AM
📍 Left Hand Brewing Garden, Longmont, CO
The inaugural Atom Jazz Fest brings three days of live jazz to the Left Hand Brewing Garden in Longmont, with a lineup that spans student ensembles and Front Range professionals alongside nationally touring acts. Headlining performances come from the Ken Walker Tribute Sextet and Electric Giz, with sets from the Health Walton Quintet, Adam Bodine Quartet, Stafford Hunter Quintet, Alex Loran Sextet, Guerrilla Fanfare, Deborah Stafford Swingtet, and more than a dozen other groups. The Atom Jazz Network, a Northern Colorado 501(c)(3) nonprofit, produces the festival as a direct investment in regional jazz education, mentorship, and gig opportunities for emerging musicians. Admission is free and the event is open to all ages.
Jazz Events in Longmont, Colorado: what to expect
You'll find jazz events in Longmont, Colorado hosted by the people who actually live and perform here. They're local artists and creators, not touring acts or tourist-trap packages. Every listing on this page is a real event you can show up to, run by someone rooted in the Longmont scene.
Upcoming listings include "Atom Jazz Fest 2026", and the lineup refreshes as creators post new dates, so it's worth checking back for what's on this week and next.
Browse the events above for dates and details, then book directly with the host. Finding jazz events in Longmont, Colorado should feel like getting a tip from a local, because that's exactly where these listings come from.