Chicago Marathon
Race Day Weather
Cool start, headwind challenges ahead
Runners will face a steady temperature rise from 57°F to 61°F throughout the race, with an average humidity of 71%. Winds will shift from a tailwind in the early miles to headwinds from Miles 2 to 23, making pacing adjustments crucial. Competitors should start conservatively and hydrate frequently, especially during the exposed sections where headwinds prevail.
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Race Info
The Chicago Marathon is a marathon (long-distance foot race) held every October in Chicago, Illinois. It is one of the six World Marathon Majors. Thus, it is also a World Athletics Label Road Race. The Chicago Marathon is the fourth-largest race by number of finishers worldwide. Wikipedia
