Longmont Public Library Calendar

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For more information about any of our calendar events, please visit our programming pages:


 View the Library Children's and Teens' CalendarThe library offers morning, bedtime and bilingual children's storytimes Children's Programs at the Library

Library programs for teensSee upcoming programs, events and classesProvee información general en español sobre la Biblioteca Pública de Longmont. 

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Rhythm on the River: A Festival of Music and Fun

Get Your Glow On!

  • Date: 07/12/2019 5:00 PM - 10:00 PM  
  • Location: Roger's Grove Nature Area
    220 Hover St
    Longmont, Colorado 80503
  • Introduction: Longmont's signature summer festival filled with music, food & drink, art, FUN! Free admission.

Rhythm on the River

Get your glow on!  Enjoy activities and Night Light Fun at Rhythm on the River, Longmont’s signature zero-waste event, as we celebrate the environment, the community, art and music. Hours are Friday and Saturday July 12-13 from 5-10pm.  Black lights throughout the venue will fluoresce white clothing. Free admission. Free parking and shuttle service is available at the Boulder County Fairgrounds. Click to view a complete list of all of the activities and entertainers. Questions? Call 303-651-8404.  Rhythm on the River is proudly sponsored by First National Bank. 
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