Events Calendar

September 2025

Sat 13

Saturday, Sep. 13, 2025 · 10:30 am - 12 pm History Tour at Sandstone Ranch Series

History Tour at Sandstone Ranch (9/13/2025)

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

Sat 13

Saturday, Sep. 13, 2025 · 11 am - 11:30 am

Special Storytime with Guest Author Heather Preusser

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

Sat 13

Saturday, Sep. 13, 2025 · 12:30 pm - 2 pm History Tour at Sandstone Ranch Series

History Tour at Sandstone Ranch (9/13/2025)

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

Sat 13

Saturday, Sep. 13, 2025 · 1:30 pm - 3:30 pm

Community Water Academy 

Longmont Senior Center 910 Longs Peak Ave., Longmont, CO, United States

Sun 14

Sunday, Sep. 14, 2025 · 2 pm - 3 pm

Dogs Enjoy Afternoon Reading (D.E.A.R.)

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

Mon 15

Monday, Sep. 15, 2025 · 9 am - Sunday, Sep. 21, 2025 · 5 pm

Lotería Scavenger Hunt

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

Mon 15

Monday, Sep. 15, 2025 · 10 am - 10:30 am Bilingual Storytime / Cuentos Bilingües Series

Bilingual Storytime / Cuentos Bilingües (9/15/2025)

Mon 15

Monday, Sep. 15, 2025 · 10:30 am - 11 am All Ages Stay and Play Series

All Ages Stay and Play (9/15/2025)

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

Mon 15

Monday, Sep. 15, 2025 · 3 pm - 5 pm

POSTPONED Water Advisory Board

Mon 15

Monday, Sep. 15, 2025 · 4 pm - 5 pm

Mythical Creatures Club: Greek Mythology

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

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 · 10:30 am - 11 am Toddler Stay & Play Series

Toddler Stay and Play (9/16/2025)

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