Boise Marathon
Race Day Weather
Warm and wet, adjust pace
Runners will face temperatures starting at 72°F, cooling to 64°F as the race progresses. With a light rain expected and humidity at 73%, pacing adjustments are essential. A consistent headwind at 12 mph will also challenge runners, suggesting a conservative start and increased hydration frequency throughout.
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We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
Welcome to the Boise Marathon. The Boise Marathon will offer the summer option for our marathon series. June 21st promises to be one of the longest Boise days. Sunrise is at 6.04 a.m. and while Sunset is scheduled 9.30 p.m., you know that Boise sun can hang in the sky until late into the evening. We can't imagine a more perfect day to run our Summer Marathon. Source
