Indianapolis Monumental Marathon
Race Day Weather
Cool morning, shifting winds ahead
Runners will face a cool start at 40°F, gradually warming to 56°F by the finish. A headwind in Mile 1 will challenge early pacing, while a tailwind from Miles 3-9 provides a boost on the flat course. With humidity at 72%, hydration will be crucial, especially during the later miles where headwinds re-emerge from Miles 15-21. Adjust pacing conservatively to manage energy and ensure a strong finish.
The Indianapolis Monumental Marathon (also known as the CNO Financial Group Indianapolis Monumental Marathon for sponsorship reasons) is an annual road marathon usually held in early November in downtown Indianapolis, Indiana, United States. The marathon was first held in 2008 and includes a half marathon and 5K run. Since 2016, it has been the only full fall marathon run in Indianapolis. In 2015, it claimed to have become one of the 20 largest marathons in the U.S. Wikipedia
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
