Bob Marshall Trail Half Marathon, 50K, and 10K
Seeley Lake, MT, USA · July 17, 2027
Race Day Weather
71°at start
84° high
Light
Dry
Warm start, warming through the race
A warm 71°F start means heat management is critical — consider dialing back your goal pace by 10-20 sec/mi. Temperatures rising to 84°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.
Race day forecast available in 296 days
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FAQ
When is the 2027 Bob Marshall Trail Half Marathon, 50K, and 10K?
The 2027 Bob Marshall Trail Half Marathon, 50K, and 10K will be held on Saturday July 17, 2027.
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 8 hours.
What will the weather be like for the 2027 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 1% chance of rain.
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