Boise Half
Race Day Weather
Cool start, mild finish
Runners will face temperatures starting at 42°F and rising to 49°F. Winds from the SE at 9 mph may create a light headwind. With humidity at 58%, runners should focus on hydration but can maintain their pace throughout. A light layer may be beneficial during pre-race warm-ups as the feels-like temperature drops to 34°F.
Pace Calculator
Get forecast alerts for Boise Half
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 Boise Half Marathon is a 13.1-mile race held annually in mid-November in Boise, Idaho, along the Boise Greenbelt trail system bordering the Boise River. The field is capped at 600 runners, and the race offers both in-person and virtual participation options. Finishers receive a race shirt and medal.
