Mill Race Marathon

Columbus, IN, USA · September 26, 2026
partly-cloudy-day56°·73° high·Breezy·Dry
7
Register

Race Day Weather

partly-cloudy-day
56°at start
73° high
Breezy
Dry

Comfortable temps, big temp swing

Mild 56°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 73°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing. Moderate humidity at 71% is worth noting for effort level, especially in later miles.

partly-cloudy-night8
partly-cloudy-night8
partly-cloudy-night8
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day6
partly-cloudy-day5
partly-cloudy-day5
partly-cloudy-day4
partly-cloudy-day5
partly-cloudy-day5

Get forecast alerts for Mill Race 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 Marathon course is a flat, fast Boston Qualifier that runs through downtown Columbus taking advantage of the shady People Trails and City Parks as well as taking participants past the architectural sights of the city. Source

Area Map

Course Map

FAQ

When is the 2026 Mill Race Marathon?

The 2026 Mill Race Marathon will be held on Saturday September 26, 2026.

Is the Mill Race Marathon a Boston Marathon Qualifier?

Yes, the Mill Race Marathon is an official Boston Marathon qualifier.

What is the time limit for the Mill Race Marathon?

The time limit for the Mill Race Marathon is 6.68 hours.

What will the weather be like for the 2026 Mill Race Marathon?

The forecast calls for a high of 73°F and a low of 55°F with a 3% chance of rain.

Historical Weather

Based on 11 years of data
Avg Temp
70°F
L:60° H:78°
RunScore
5
Conditions
Rain Freq
18%
2 of 11 yrs
Wind7mph
Dew58°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
54°/79°-
5
2024
rain
66°/69°Light
5
2023
clear-day
55°/79°-
5
2022
rain
56°/73°Light
6
2019
clear-day
68°/86°-
3
2018
clear-day
59°/63°-
7
2017
clear-day
65°/90°-
3
2016
partly-cloudy-day
67°/82°-
4
2015
cloudy
63°/74°-
5
2014
clear-day
55°/81°-
5
2013
clear-day
51°/81°-
5