Events Calendar

September 2025

Sat 13

History Tour at Sandstone Ranch (12:30 pm–2:00 pm)

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

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

Tue 16

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

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

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

Fri 19

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

Friday, Sep. 19, 2025 · 9 am - 11 am 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, Sep. 20, 2025 · 12 pm - 1 pm

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

Fri 26

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

Friday, Sep. 26, 2025 · 9 am - 11 am 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, Sep. 27, 2025 · 10 am - 2 pm 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, Sep. 30, 2025 · 7:30 am - 10 am 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 (10/3/2025)

Friday, Oct. 3, 2025 · 9 am - 11 am 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 am - 3 pm Longmont Swim Instructor Class (LSI) Series

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

Sat 4

Free Fitness in the Park (10/4/2025)

Saturday, Oct. 4, 2025 · 12 pm - 1 pm

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

Sun 5

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

Sunday, Oct. 5, 2025 · 9 am - 3 pm 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 am - 11 am 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 am - 2 pm 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 am - 11 am 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 am - 11 am 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 · 12 pm - 1 pm

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

Sat 18

Mystery Dinner at Callahan House

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

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

Fri 24

Itty Bitty City Preschool Playtime (10/24/2025)

Friday, Oct. 24, 2025 · 9 am - 11 am 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 am - 11:30 am

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 am - 2 pm Open House at Sandstone Ranch Series

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