Fox Valley Marathon
Race Day Weather
Warm start, moderate wind, chance of rain, high humidity
Starting at 66°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temperatures rising to 75°F through the course will gradually increase perceived effort in the second half. Moderate winds around 13mph may affect pacing on open sections of the course. There's a chance of rain, so have a backup gear plan ready. High humidity (85%) will make it harder to cool down through sweat — increase fluid intake accordingly.
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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
Combining small race atmosphere with big race amenities, the Fox Valley Marathon, Half Marathon, and Fall Final 20 are ideal for both veterans looking for a fast race, as well as first timers looking for an uncrowded, supportive, family-friendly race setting. Starting and ending in historic downtown St Charles, IL, the course winds through picturesque Geneva, Batavia, North Aurora, and Aurora to a spectacular finish across the Fox River that can be seen from over a mile away. The course offers fantastic viewing spots for families and supporters, as well as frequent and well positioned aid stations that are staffed by the most supportive volunteer teams of any race you’ve run.