September 2025

Fri 5

All Out League

Friday, Sep. 5, 2025 · 4 pm - 5 pm All Out League Series

Longmont Youth Center 1050 Lashley St., Longmont, CO, United States

Fri 5

2nd Annual Sunset Soiree

Friday, Sep. 5, 2025 · 6 pm - 9 pm

Longmont Museum 400 Quail Rd., Longmont, CO, United States

Sat 6

Council at the Market

Saturday, Sep. 6, 2025 · 8 am - 1 pm Council at the Market Series

Boulder County Fairgrounds 9595 Nelson Road, Longmont, Colorado, United States

Sat 6

Discovery Days Art (9/6/2025)

Saturday, Sep. 6, 2025 · 9:15 am - 2:15 pm Discovery Days Art Series

Longmont Museum 400 Quail Rd., Longmont, CO, United States

Sat 6

English Conversation Group (9/6/2025)

Saturday, Sep. 6, 2025 · 10:30 am - 11:30 am English Conversation Group Series

Longmont Public Library 355 Emery St., Longmont, CO, United States

Practice English conversation with others in an informal, conversational setting. Some English experience suggested, but all welcome.

Sat 6

Free Fitness in the Park

Saturday, Sep. 6, 2025 · 12 pm - 1 pm

Lanyon Park 1900 Collyer Street, Longmont, Colorado, United States

Sat 6

Shakespeare Remix: A Performance-Based Theater Workshop for Teens

Saturday, Sep. 6, 2025 · 12 pm - 4 pm

Longmont Public Library 355 Emery St., Longmont, CO, United States

Over the course of four exciting hours (with breaks), students will explore classic character archetypes, collaborate creatively, and bring original skits to life — all while building confidence, communication skills, and a deeper appreciation for performance. Registration is required.

Sat 6

Rhythm at Roosevelt

Saturday, Sep. 6, 2025 · 2 pm - 10 pm

Roosevelt Park 700 Longs Peak Ave., Longmont, CO, United States

Mon 8

Bailes de mi tierra dance performance

Monday, Sep. 8, 2025 · 10:45 am - 11:30 am

Longmont Public Library 355 Emery St., Longmont, CO, United States

Mon 8

Navigators

Monday, Sep. 8, 2025 · 4 pm - 5:30 pm Navigators Series

Longmont Youth Center 1050 Lashley St., Longmont, CO, United States

Tue 9

Discovery Days Music & Movement

Tuesday, Sep. 9, 2025 · 9:15 am - 2 pm Discovery Days Music & Movement Series

Longmont Museum 400 Quail Rd., Longmont, CO, United States

Tue 9

Studio Series: Intro to Watercolor

Tuesday, Sep. 9, 2025 · 9:30 am - 11:30 am Studio Series: Intro to Watercolor Series

Longmont Museum 400 Quail Rd., Longmont, CO, United States

Tue 9

Teen Library Committee Meeting

Tuesday, Sep. 9, 2025 · 4 pm - 5 pm

Longmont Public Library 355 Emery St., Longmont, CO, United States

Tue 9

After School Music Classes: Vocal Vibes

Tuesday, Sep. 9, 2025 · 4 pm - 5 pm After School Music Classes: Vocal Vibes Series

Longmont Museum 400 Quail Rd., Longmont, CO, United States

Tue 9

Open Chess Night @ the Library (9/9/2025)

Tuesday, Sep. 9, 2025 · 5:30 pm - 7:30 pm Open Chess Night Series

Longmont Public Library 355 Emery St., Longmont, CO, United States

Open chess evenings are informal and there will be basic instruction on how to play. We also have plenty of books about playing and the history of the game.

Tue 9

City Council Meeting

Tuesday, Sep. 9, 2025 · 7 pm - 11 pm City Council Meeting Series

Longmont Civic Center 350 Kimbark St., Longmont, CO, United States

Join us at a City Council meeting.

Wed 10

Discovery Days Art (9/10/2025)

Wednesday, Sep. 10, 2025 · 9:15 am - 2:15 pm Discovery Days Art Series

Longmont Museum 400 Quail Rd., Longmont, CO, United States

Wed 10

Callahan House Advisory Board

Wednesday, Sep. 10, 2025 · 9:30 am - 11:30 am Callahan House Advisory Board Series

Callahan House 312 Terry St, Longmont, CO, United States

Wed 10

Teen Craft & Create Club

Wednesday, Sep. 10, 2025 · 3 pm - 5 pm Teen Craft & Create Club Series

Longmont Museum 400 Quail Rd., Longmont, CO, United States

Wed 10

Science @ 6: Rain and Rainbows

Wednesday, Sep. 10, 2025 · 6 pm - 7 pm

Longmont Public Library 355 Emery St., Longmont, CO, United States