December 2025

Thu 11

Youth Original Recording Studio

Thursday, Dec. 11, 2025 · 4 pm - 5 pm Youth Original Recording Studio Series

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

Thu 11

Art & Sip: Alcohol Ink Sunrise

Thursday, Dec. 11, 2025 · 4 pm - 8:30 pm

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

Thu 11

Vision Zero Task Force Meeting

Thursday, Dec. 11, 2025 · 6 pm - 7:30 pm

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

Thu 11

Short Films from the 2025 Boulder International Film Festival Pt. II

Thursday, Dec. 11, 2025 · 7 pm - 9 pm

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

Our second round of shorts made by filmmakers from across the globe as selected for inclusion in the 2025 Boulder International Film Festival. 

Fri 12

Friends of the Longmont Library (FOLL) Book Sale (12/12/2025)

Friday, Dec. 12, 2025 · 9 am - 8 pm

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

Fri 12

Discovery Days Art (12/12/2025)

Friday, Dec. 12, 2025 · 9:15 am - 2:15 pm Discovery Days Art Series

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

Fri 12

Friday Afternoon Concert: Flatirons Jazz Orchestra

Friday, Dec. 12, 2025 · 2:30 pm - 4:30 pm

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

Join us as we go back in time and enjoy a swinging afternoon with this traditional 18-piece big band.

Fri 12

All Out League

Friday, Dec. 12, 2025 · 4 pm - 5 pm All Out League Series

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

Fri 12

Longmont Lights Holiday Festival

Friday, Dec. 12, 2025 · 5 pm - 8 pm

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

Sat 13

Friends of the Longmont Library (FOLL) Book Sale (12/13/2025)

Saturday, Dec. 13, 2025 · 9 am - 5 pm

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

Sat 13

Discovery Days Art (12/13/2025)

Saturday, Dec. 13, 2025 · 9:15 am - 2:15 pm Discovery Days Art Series

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

Sat 13

Ornaments & Keepsakes Big-Kids Day at Discovery Days

Saturday, Dec. 13, 2025 · 9:15 am - 2:15 pm

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

Sat 13

English Conversation Group

Saturday, Dec. 13, 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 13

Longmont Lights Holiday Parade

Saturday, Dec. 13, 2025 · 5 pm - 7 pm

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

Sun 14

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

Sunday, Dec. 14, 2025 · 2 pm - 3 pm

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

Mon 15

Youth Basketball League Registration Deadline

Monday, Dec. 15, 2025

Recreation Center 310 Quail Rd., Longmont, CO, United States

Mon 15

CANCELLED Water Advisory Board

Monday, Dec. 15, 2025 · 3 pm - 5 pm Water Advisory Board Series

Mon 15

Mythical Creatures Club: Kitsunes

Monday, Dec. 15, 2025 · 4 pm - 5 pm

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

Mon 15

Navigators

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

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

Mon 15

Drop-in Writers Group

Monday, Dec. 15, 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.