The Mighty Mo Races
Race Day Weather
Warm up, steady breeze
Runners will face a temperature rise from 59°F at the start to 70°F by the finish, with average humidity at 72%. A light to moderate headwind will challenge runners, especially as gusts reach 26 mph. It’s advisable to pace conservatively early on and stay hydrated throughout, especially in the warmer conditions.
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Race Info
Mighty Mo Run is a three-day running weekend in Sioux City, Iowa, with a Friday 5K, a Saturday 10K and kids run, and a Sunday half marathon. A full marathon was added for 2026, crossing Iowa, Nebraska, and South Dakota via a newly opened pedestrian bridge and offering prize money for the first time. The race starts and finishes at the Seaboard Triumph Foods Expo Center and benefits the H.A.R.T. Foundation (Helping Athletes Run & Train).
