The Mighty Mo Races

Sioux City, IA, USA · September 13, 2026
partly-cloudy-day55°·73° high·Breezy·Dry
9
Register
Weather
Course
FAQ
History

Race Day Weather

partly-cloudy-day
55°at start
76° high
Breezy
Dry

Warm day, adjust pacing early

Runners will face a temperature rise from 55°F to 74°F, accompanied by 71% humidity. A light south-southeast wind at 10 mph will provide a slight headwind throughout. It is advisable to start conservatively and adjust pacing as temperatures increase, ensuring adequate hydration throughout the race.

Race day forecast available in 75 days
partly-cloudy-night9
partly-cloudy-night9
partly-cloudy-night9
partly-cloudy-night9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day7

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.

Race Info

Website
Area Map

Course Map

Course Map Unavailable

We don't have course map data for The Mighty Mo Races yet. If you have a GPX file (or other format) for this race, we'd love to add it!

FAQ

Ask a Question about the The Mighty Mo Races

Racecast Concierge (free during beta)

Ask a question about the The Mighty Mo Races and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the The Mighty Mo Races and general racecast.io updates.

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 8% chance of rain.

Historical Weather

Based on 1 years of data
Avg Temp
84°F
L:65° H:84°
RunScore
5
Conditions
Rain Freq
0%
0 of 1 yrs
Wind13mph
Dew67°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2024 The Mighty Mo Races

Clear conditions throughout the day.

2024
clear-night
65°/84°-
8
Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

Race Day Alerts

Get notified when the The Mighty Mo Races forecast shifts — so you can adjust your gear, pacing, and strategy.

Forecast shift alerts (temp, wind, rain)
Updates as weather changes leading up to race day
Max one message per day
Text Alerts

USA, UK, and Canada only. Standard rates apply.

or
Email Alerts

By subscribing you agree to receive race forecasts and racecast.io updates.

Submit a correction

Spot something wrong or missing for the The Mighty Mo Races? Let us know and we'll update it.

You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR

Submit a race

Missing a race? Send it in and we'll add it to Racecast.