Bob Marshall Trail Half Marathon, 50K, and 10K
Seeley Lake, MT, USA · July 18, 2026
Race Day Weather
64°at start
85° high
Light
Dry
Warm start, rising heat alert
Runners will face a temperature rising from 64°F to 85°F, with a light breeze from the W at 6 mph. Humidity is low at 36%, but as temperatures climb, runners should adjust their pace and hydrate frequently. Starting conservatively is key to managing the heat later in the race.
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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 85°F and a low of 63°F with a 26% chance of rain.