Idaho Running Day
Race Day Weather
Warming trend, moderate wind
Runners will face a gradual temperature increase from 50°F at the start to a peak of 73°F. Winds will be moderate from the SE at 13 mph. With low humidity at 32%, hydration will be key as temperatures rise. It's advisable to start conservatively to manage the warming conditions.
Pace Calculator
Get forecast alerts for Idaho Running Day
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
Idaho Running Day is a multi-distance running event in Boise, Idaho, held each fall along the Boise Greenbelt. It offers a marathon, half marathon, 10K, and 5K, starting near Lucky Peak Reservoir at Sandy Point Park and finishing in southeast Boise along the Boise River. The event was previously known as the Idaho Running Company Marathon before being rebranded as Idaho Running Day in 2025. Source
