Bob Marshall Trail Half Marathon, 50K, and 10K
Seeley Lake, MT, USA · July 18, 2026
Race Day Weather
71°at start
85° high
Breezy
Dry
Warm day, adjust pace accordingly
Runners will face a temperature rise from 61°F at the start to a peak of 85°F. With a light SW wind at 8 mph and low humidity at 30%, hydration will be key. It's advisable to start conservatively and adjust pace as the heat increases throughout the race.
Race day forecast available in 41 days
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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 86°F and a low of 55°F with a 2% chance of rain.