The Mighty Mo Races
Sioux City, IA, USA · September 13, 2026
Race Day Weather
55°at start
76° high
Breezy
Dry
Warm-up, steady winds
Runners will face a temperature rise from 55°F at the start to a high of 74°F. Humidity will be elevated at 71%, prompting runners to hydrate frequently. A gentle headwind at 10 mph may challenge pacing, so adjustments should be made to maintain energy throughout the race.
Race day forecast available in 40 days
Pre-raceRace windowPost-race
Get forecast alerts for The Mighty Mo Races
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
FAQ
When is the 2026 The Mighty Mo Races?
The 2026 The Mighty Mo Races will be held on Sunday September 13, 2026.
What is the time limit for the The Mighty Mo Races?
The time limit for the The Mighty Mo Races is 6.5 hours.
What will the weather be like for the 2026 The Mighty Mo Races?
The forecast calls for a high of 79°F and a low of 58°F with a 7% chance of rain.
