September 2025

Thu 18

Bonnie & Taylor Sims and Friends

Thursday, Sep. 18, 2025 · 7 pm - 9 pm

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

Join Longmont’s own Bonnie & Taylor Sims as they gather up some singer-songwriter friends (new and old) for an intimate evening of original music and conversation on the fine art of songwriting.

Fri 19

Itty Bitty City Preschool Playtime

Friday, Sep. 19, 2025 · 9 am - 11 am Itty Bitty City Preschool Playtime Series

Memorial Building 700 Longs Peak Ave., Longmont, CO, United States

Fri 19

Friends of the Longmont Library Book Sale (9/19/2025)

Friday, Sep. 19, 2025 · 9 am - 8 pm

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

Fri 19

Discovery Days Art (9/19/2025)

Friday, Sep. 19, 2025 · 9:15 am - 2:15 pm Discovery Days Art Series

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

Fri 19

All Out League

Friday, Sep. 19, 2025 · 4 pm - 5 pm All Out League Series

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

Sat 20

Friends of the Longmont Library Book Sale (9/20/2025)

Saturday, Sep. 20, 2025 · 9 am - 5 pm

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

Sat 20

Pop-Up Book Sale: Romance

Saturday, Sep. 20, 2025 · 9 am - 5 pm

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

Sat 20

Discovery Days Art (9/20/2025)

Saturday, Sep. 20, 2025 · 9:15 am - 2:15 pm Discovery Days Art Series

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

Sat 20

English Conversation Group

Saturday, Sep. 20, 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 20

Free Fitness in the Park

Saturday, Sep. 20, 2025 · 12 pm - 1 pm

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

Mon 22

Discovery Days Music & Movement in the Park

Monday, Sep. 22, 2025 · 10:45 am - 11:45 am

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

Mon 22

Water Advisory Board

Monday, Sep. 22, 2025 · 3 pm - 5 pm

Mon 22

Navigators

Monday, Sep. 22, 2025 · 4 pm - 5:30 pm Navigators Series

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

Mon 22

Flex Your Mind: Brain Games for Tweens with Root Lab

Monday, Sep. 22, 2025 · 5 pm - 6 pm

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

Mon 22

Drop-in Writers Group

Monday, Sep. 22, 2025 · 6 pm - 7:30 pm Drop-in Writers Group / Grupo de Escritores Abierto Series

Longmont Public Library 355 Emery St., 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 22

Deep Thoughts Philosophy Book Group (Virtual)

Monday, Sep. 22, 2025 · 7 pm - 8:30 pm

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

This book group discusses a different classic short work of philosophy or an excerpt from a longer work.

Tue 23

Discovery Days Music & Movement

Tuesday, Sep. 23, 2025 · 9:15 am - 2 pm Discovery Days Music & Movement Series

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

Tue 23

Studio Series: Intro to Watercolor

Tuesday, Sep. 23, 2025 · 9:30 am - 11:30 am Studio Series: Intro to Watercolor Series

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

Tue 23

After School Music Classes: Vocal Vibes

Tuesday, Sep. 23, 2025 · 4 pm - 5 pm After School Music Classes: Vocal Vibes Series

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

Tue 23

Open Chess Night @ the Library

Tuesday, Sep. 23, 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.