Idaho Running Day
Race Day Weather
Cool start, warming trend ahead
Runners will face a temperature rise from 46°F at the start to 66°F by the finish, with a light headwind throughout. Humidity is relatively low at 47%, making conditions manageable. As temperatures climb, pacing adjustments should be considered to maintain performance, especially in the warmer segments.
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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
