MO Cowbell Half Marathon
Race Day Weather
Cold start — layer up, big temp swing
Runners will start in chilly 39°F conditions — dress in layers for the corral and plan to shed early. Temps will climb significantly to 61°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing. Moderate humidity at 73% is worth noting for effort level, especially in later miles.
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Race Info
The half marathon starts and finishes at Frontier Park on the Missouri River in St. Charles. It runs north along River Road and Highway 94 into the Boschertown Road area and loops through the New Town neighborhood around its lake. It then returns on Little Hills Expressway and North Fifth Street, with a gentle rise through miles 10 to 12 and a flat, fast first half.
