Bob Marshall Trail Half Marathon, 50K, and 10K
Seeley Lake, MT, USA · July 18, 2026
Race Day Weather
66°at start
84° high
Breezy
Dry
Warm conditions, gradual heat rise
Runners will face a starting temperature of 61°F, rising to 84°F by the finish. Wind will be a gentle SW breeze at 12 mph, with gusts up to 23 mph. With low humidity at 21%, hydration will be crucial, especially as temperatures climb; runners should pace conservatively early on.
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FAQ
When is the 2026 Bob Marshall Trail Half Marathon, 50K, and 10K?
The 2026 Bob Marshall Trail Half Marathon, 50K, and 10K will be held on Saturday July 18, 2026.
What is the time limit for the Bob Marshall Trail Half Marathon, 50K, and 10K?
The time limit for the Bob Marshall Trail Half Marathon, 50K, and 10K is 9 hours.
What will the weather be like for the 2026 Bob Marshall Trail Half Marathon, 50K, and 10K?
The forecast calls for a high of 84°F and a low of 50°F with a 13% chance of rain.