City of Trees Marathon
Race Day Weather
Cool start, warming finish
Runners will face temperatures starting at 45°F and rising to a comfortable 62°F by race end. Winds will be moderate from the NW at 12 mph, becoming a factor in the later miles. With average humidity at 47%, hydration should be managed but isn't critical. A conservative pace is advisable early on, given the cool start.
Pace Calculator
Get forecast alerts for City of Trees Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
The City of Trees Marathon in Boise, Idaho, offers runners a scenic journey through the city's lush parks, tree-lined streets, and along the picturesque Boise River. The course features a mostly flat terrain with subtle elevation changes, providing a comfortable yet engaging running experience. Participants can expect well-marked paths, frequent aid stations, and a vibrant community atmosphere that showcases Boise's natural beauty and welcoming spirit.
