Idaho Running Day Half Marathon
Race Day Weather
Cool start — fast day potential, big temp swing
A cool 46°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 67°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
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Race Info
The Idaho Running Day Half Marathon covers 13.1 miles along the Boise River Greenbelt. It starts and finishes at Sandy Point in Lucky Peak State Park, at the foot of Lucky Peak Dam, and heads west beside the river with canyon walls and cottonwoods along the way. The turnaround is at Parkcenter Boulevard, and runners come back to Sandy Point on the same path. The course is certified and stays close to river level.
