Discover Renton parkrun, a vibrant weekly 5K that welcomes runners, joggers, and walkers of all ages and abilities to the scenic Cedar River Trail in Renton, WA. Held every Saturday, including September 19, 2026, this free, community-driven event offers a fantastic opportunity to stay active in a supportive environment. Typical race day conditions in mid-September feature pleasant highs around 71F and lows near 53F, with only an 8% chance of precipitation, making for ideal running weather.

The accurately measured 5K course follows a paved, out-and-back path along the Cedar River, offering a mostly flat profile with some gentle undulations. Runners will enjoy the natural beauty of the trail, largely surrounded by trees, creating a peaceful "rain forest" ambiance in sections. While sharing the path with cyclists and pedestrians, the friendly atmosphere is often enhanced by encouraging chalk messages along the route. The start and finish are conveniently located just beyond a bollard near the I-405 overpass, with ample parking available in a gravel lot nearby or at Liberty Park.

Renton parkrun is more than just a timed run; it's a social occasion and a staple of the local running community, known for its welcoming volunteers and non-judgmental approach. Since its launch in November 2017 as the first parkrun in the Pacific Northwest, it has fostered a positive space where participants can push for a personal best or simply enjoy a morning stroll with friends, family, or even their dogs. After crossing the finish line, many participants extend the camaraderie by gathering for post-parkrun coffee and cupcakes at Common Ground Coffee & Cupcakes in downtown Renton, a tradition that perfectly encapsulates the event's friendly spirit.