Events Calendar

September 2025

Mon 15

Monday, Sep. 15, 2025 · 4 pm - 5:30 pm Navigators Series

Navigators (9/15/2025)

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

Mon 15

Monday, Sep. 15, 2025 · 5:30 pm - 7 pm

Historic Main Street Walking Tour

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

Mon 15

Monday, Sep. 15, 2025 · 6 pm - 7:30 pm Drop-in Writers Group / Grupo de Escritores Abierto Series

Drop-in Writers Group (9/15/2025)

Longmont Library 409 4th Ave., Longmont, CO, United States

Mon 15

Monday, Sep. 15, 2025 · 6 pm - 7:30 pm Drop-in Writers Group / Grupo de Escritores Abierto Series

Drop-in Writers Group (9/15/2025)

Longmont Library 409 4th Ave., Longmont, CO, United States

Drop-in on Mondays at 6 pm for a thoughtful, intentional and inclusive space to gather around the art and craft of writing.

Mon 15

Monday, Sep. 15, 2025 · 7 pm - 9 pm Library Board Meeting Series

Library Board Meeting

Tue 16

Tuesday, Sep. 16, 2025 · 7:30 am - 10 am Bird Walk at Sandstone Ranch Series

Bird Walk at Sandstone Ranch (9/16/2025)

Sandstone Ranch Visitors Center 3001 Sandstone Dr., Longmont, CO, United States

Tue 16

Tuesday, Sep. 16, 2025 · 9:15 am - 2 pm Discovery Days Music & Movement Series

Discovery Days Music & Movement (9/16/2025)

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

Tue 16

Tuesday, Sep. 16, 2025 · 9:30 am - 11:30 am Studio Series: Intro to Watercolor Series

Studio Series: Intro to Watercolor (9/16/2025)

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

Tue 16

Tuesday, Sep. 16, 2025 · 10 am - 11 am

Lanyon Park Historic Walking Tour

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

Tue 16

Tuesday, Sep. 16, 2025 · 4 pm - 5 pm After School Music Classes: Vocal Vibes Series

After School Music Classes: Vocal Vibes (9/16/2025)

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

Tue 16

Tuesday, Sep. 16, 2025 · 4 pm - 6 pm

College Common Application Boot Camp

Longmont Library 409 4th Ave., Longmont, CO, United States

Tue 16

Tuesday, Sep. 16, 2025 · 5:30 pm - 7:30 pm Open Chess Night Series

Open Chess Night @ the Library (9/16/2025)

Longmont Library 409 4th Ave., 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 16

Tuesday, Sep. 16, 2025 · 6 pm - 7 pm

City Council Pre-Session

Tue 16

Tuesday, Sep. 16, 2025 · 6 pm - 7:30 pm

Dungeons & Dragons for Teens

Longmont Library 409 4th Ave., Longmont, CO, United States

Wed 17

Wednesday, Sep. 17, 2025 · 9:15 am - 2:15 pm Discovery Days Art Series

Discovery Days Art (9/17/2025)

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

Wed 17

Wednesday, Sep. 17, 2025 · 3 pm - 5 pm Teen Craft & Create Club Series

Teen Craft & Create Club (9/17/2025)

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

Wed 17

Wednesday, Sep. 17, 2025 · 3 pm - 8 pm Friends of the Longmont Library Book Sale Series

Friends of the Longmont Library Book Sale (Members Only Night)

Longmont Library 409 4th Ave., Longmont, CO, United States

Wed 17

Wednesday, Sep. 17, 2025 · 4:30 pm - 6:30 pm REMOTE Sustainability Advisory Board Series

REMOTE Sustainability Advisory Board (9/17/2025)

Virtual Event

Wed 17

Wednesday, Sep. 17, 2025 · 5 pm - 6 pm

Teen Anime Club

Longmont Library 409 4th Ave., Longmont, CO, United States

Wed 17

Wednesday, Sep. 17, 2025 · 5 pm - 7 pm

Make and Take Station: Paper Flowers

Longmont Library 409 4th Ave., Longmont, CO, United States