The Mighty Mo Races Half Marathon
Race Day Weather
Comfortable temps, rain likely
Mild 58°F temps at gun time mean comfortable early miles without overheating risk. Light winds shouldn't be a major factor for pacing. Rain is likely — waterproof your phone and bib, and consider a disposable poncho for the corral. High humidity (84%) will make it harder to cool down through sweat — increase fluid intake accordingly.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for The Mighty Mo Races Half Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Race Info
The Mighty Mo Half Marathon covers 13.1 miles on the Sunday of race weekend in Sioux City, Iowa. It is a flat out-and-back route that follows the Missouri River Trail from the Siouxland Expo Center, with the start and finish held indoors at the Expo Center. It is the Sunday companion to the full marathon.
