Bob Marshall Trail Half Marathon, 50K, and 10K
Seeley Lake, MT, USA · July 17, 2027
Bob Marshall Trail Half Marathon, 50K, and 10K race day weather
71°at start
84° high
Light
Dry
Your goal
0:00:00
Warm day, hydrate early
Runners will face a temperature rise from 71°F at the start to 76°F by finish. With a light wind from the WSW and low humidity at 33%, conditions are generally favorable. To combat the heat, it's advisable to start conservatively and hydrate frequently throughout the race.
Race day forecast available in 234 days
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Distance: 13.1mi
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Race weekend
Saturday, July 17
9:00 AMHalf Marathon (13.1 mi)
50K (31.1 mi)
5K (3.1 mi)
Bob Marshall Trail Half Marathon, 50K, and 10K 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.
What is the weather usually like for the Bob Marshall Trail Half Marathon, 50K, and 10K?
Over the 3 years racecast.io has race-day weather for (2023 to 2026), it averaged 63°F at the start and 72°F by a typical finish. It has not rained during race hours in any of those years.
What was the hottest Bob Marshall Trail Half Marathon, 50K, and 10K?
Of the 3 years on record, 2026 was the warmest, reaching 77°F during race hours. The coldest start was 2024, at 53°F.
What was the windiest Bob Marshall Trail Half Marathon, 50K, and 10K?
Of the 3 years on record, 2024 was the windiest, with wind averaging 3 mph during race hours. The calmest was 2026, at 0 mph.
Bob Marshall Trail Half Marathon, 50K, and 10K weather history
Based on 3 years of data
Avg Temp
67°F
L:63° H:72°
RunScore
Conditions
Rain Freq
0%
0 of 3 yrs
Wind2mph
Dew50°F
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2026 |  | 69°/77° | - | 59° | |
2024 | | 53°/63° | - | 39° | |
2023 | | 66°/75° | - | 53° |
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