MO Cowbell Marathon
Race Day Weather
Cool conditions, steady pacing advised
Runners will face temperatures starting at 44°F and rising to 61°F by the finish. With a light wind from the SSW at 7 mph and moderate humidity at 58%, conditions are favorable for a solid race. It's advisable to start conservatively and adjust pacing as temperatures climb, particularly on later laps. Hydration should be prioritized to maintain performance throughout the event.
Pace Calculator
Get forecast alerts for MO Cowbell Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized MO Cowbell Marathon race plan
Weather-adjusted pacing, per-mile terrain splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.
Race Info
MO' Cowbell Marathon has run through St. Charles, Missouri since 2011, started by local organizers to host a family-friendly race for the community. The USATF-certified course starts and finishes along the Missouri River in Frontier Park, staying flat for about ten miles before a two-mile hilly stretch on the Little Hills Expressway and a downhill final mile to the finish. It qualifies for the Boston, New York City, London and Chicago marathons. Source