Longmont’s Rhythm at Roosevelt (formerly known as Rhythm on the River) is the city’s largest summer event. This festival celebrates the arts and music in one fun‑filled signature event at Roosevelt Park on Saturday, September 6, 2025, from 2 p.m. to 10 p.m. This family-friendly festival is FREE to attend.
Source: City of Longmont
Live performances include:
2:00 Queso Ra
4:30 Megan Burtt
5:00 Black Hole Boogie Band
6:30 The KYN
8:30 Rootbeer Richie and the Reveille
In addition to a restaurant row (vendors & food trucks), beer garden, entertainment and Bricks Market (selling local wares), features include:
Pop Up Roller Rink
Axe Throwing
Inflatables
Ropes Course
Parking options include Roosevelt Park parking lots, downtown surface lots and street parking, the Spoke Garage on Cofftman St. and neighborhood street parking.
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