Boise Marathon
Boise, ID, USA • June 20, 2026
Race Day Weather
56°
80° high
Breezy
Dry
Cool start, warming trend
Runners will face a starting temperature of 56°F, rising to 79°F by race end. Winds will be from the WSW at 10 mph, with gusts up to 23 mph. With humidity at 42%, pacing should be conservative early on to adapt to the warm conditions later in the race.
Race day forecast available in 72 days
Pre-raceRace windowPost-race
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
FAQ
When is the 2026 Boise Marathon?
The 2026 Boise Marathon will be held on Saturday June 20, 2026.
Is the Boise Marathon a Boston Marathon Qualifier?
Yes, the Boise Marathon is an official Boston Marathon qualifier.
What is the time limit for the Boise Marathon?
The time limit for the Boise Marathon is 6 hours.
What will the weather be like for the 2026 Boise Marathon?
The forecast calls for a high of 81°F and a low of 56°F with a 0% chance of rain.