American Heroes Run
Longmont, CO, USA · September 12, 2026
Race Day Weather
71°at start
94° high
Breezy
Rain possible
Warm start, rising heat danger
Runners will face a starting temperature of 65°F, rising to a hot 94°F by race end. Wind will be light from the S, maxing at 11 mph, while humidity remains low at 14%. With increasing heat, it is crucial to start conservatively and hydrate frequently to maintain performance.
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