Events Calendar

September 2025

Fri 19

Itty Bitty City Preschool Playtime (9/19/2025)

Friday, Sept. 19, 2025 · 9 a.m. - 11 a.m. Itty Bitty City Preschool Playtime Series

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

Sat 20

Free Fitness in the Park (9/20/2025)

Saturday, Sept. 20, 2025 · noon - 1 p.m.

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

Fri 26

Itty Bitty City Preschool Playtime (9/26/2025)

Friday, Sept. 26, 2025 · 9 a.m. - 11 a.m. Itty Bitty City Preschool Playtime Series

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

Sat 27

Open House at Sandstone Ranch (9/27/2025)

Saturday, Sept. 27, 2025 · 10 a.m. - 2 p.m. Open House at Sandstone Ranch Series

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

Tue 30

Bird Walk at Sandstone Ranch (9/30/2025)

Tuesday, Sept. 30, 2025 · 7:30 a.m. - 10 a.m. Bird Walk at Sandstone Ranch Series

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

October 2025

Fri 3

Itty Bitty City Preschool Playtime

Friday, Oct. 3, 2025 · 9 a.m. - 11 a.m. Itty Bitty City Preschool Playtime Series

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

Sat 4

Longmont Swim Instructor Class (LSI) (10/4/2025)

Saturday, Oct. 4, 2025 · 9 a.m. - 3 p.m. Longmont Swim Instructor Class (LSI) Series

Centennial Pool 1201 Alpine St, Longmont, Colorado, United States

Sat 4

Free Fitness in the Park

Saturday, Oct. 4, 2025 · noon - 1 p.m.

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

Sun 5

Longmont Swim Instructor Class (LSI) (10/5/2025)

Sunday, Oct. 5, 2025 · 9 a.m. - 3 p.m. Longmont Swim Instructor Class (LSI) Series

Centennial Pool 1201 Alpine St, Longmont, Colorado, United States

Fri 10

Itty Bitty City Preschool Playtime (10/10/2025)

Friday, Oct. 10, 2025 · 9 a.m. - 11 a.m. Itty Bitty City Preschool Playtime Series

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

Sat 11

Open House at Sandstone Ranch (10/11/2025)

Saturday, Oct. 11, 2025 · 10 a.m. - 2 p.m. Open House at Sandstone Ranch Series

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

Tue 14

Bird Walk at Sandstone Ranch (10/14/2025)

Tuesday, Oct. 14, 2025 · 8 a.m. - 11 a.m. Bird Walk at Sandstone Ranch Series

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

Fri 17

Itty Bitty City Preschool Playtime (10/17/2025)

Friday, Oct. 17, 2025 · 9 a.m. - 11 a.m. Itty Bitty City Preschool Playtime Series

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

Sat 18

Free Fitness in the Park (10/18/2025)

Saturday, Oct. 18, 2025 · noon - 1 p.m.

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

Sat 18

Mystery Dinner at Callahan House

Saturday, Oct. 18, 2025 · 6:30 p.m. - 10 p.m. Mystery Dinner at Callahan House Series

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

Fri 24

Itty Bitty City Preschool Playtime

Friday, Oct. 24, 2025 · 9 a.m. - 11 a.m. Itty Bitty City Preschool Playtime Series

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

Sat 25

Halloween Parade

Saturday, Oct. 25, 2025 · 9:30 a.m. - 11:30 a.m.

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

Sat 25

Open House at Sandstone Ranch (10/25/2025)

Saturday, Oct. 25, 2025 · 10 a.m. - 2 p.m. Open House at Sandstone Ranch Series

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

Tue 28

Bird Walk at Sandstone Ranch (10/28/2025)

Tuesday, Oct. 28, 2025 · 8 a.m. - 11 a.m. Bird Walk at Sandstone Ranch Series

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

Fri 31

Itty Bitty City Preschool Playtime (10/31/2025)

Friday, Oct. 31, 2025 · 9 a.m. - 11 a.m. Itty Bitty City Preschool Playtime Series

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