Events in Longmont — September 2026

Frequently Asked Questions

What's happening in Longmont in September 2026?

There are 35 events in Longmont, Colorado in September 2026, including Open Mic Night at Grossen Bart Brewery, Community Games & Bingo at Parkway Food Hall, Bingo/Music Bingo at Grossen Bart Brewery, Karaoke with Nic's Mobile Music at Parkway Food Hall. Browse the full September 2026 calendar on VenuNite.

Are there free things to do in Longmont in September 2026?

Yes — 22 of the listed September 2026 events in Longmont are free, including concerts, open mics, and community events. Filter by price on the list above.

How do I find events in Longmont for a specific date in September 2026?

VenuNite lists every upcoming event in Longmont, Colorado with date filters. Use the date picker on this page to narrow September 2026 down to a single day or weekend.