Mill Race Marathon

Columbus, IN, USA • September 26, 2026
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Race Day Weather

partly-cloudy-day
58°
77° high
Breezy
Dry

Warming temps, moderate humidity

Runners will face a temperature increase from 58°F at the start to a high of 77°F. With an average humidity of 67% and light winds from the S, pacing adjustments should be considered as the race progresses. Runners are advised to hydrate frequently and start conservatively to manage the rising heat.

Race day forecast available in 184 days
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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

Course Map Unavailable

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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.

Historical Weather

Based on 11 years of data
Avg Temp
78°F
L:60° H:78°
RunScore
7
Conditions
Rain Freq
18%
2 of 11 yrs
Wind8mph
Dew58°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2025 Mill Race Marathon

Clear conditions throughout the day.

2025
clear-day
54°/79°-
8

2024 Mill Race Marathon

Cloudy skies throughout the day with a chance of rain throughout the day.

2024
rain
66°/69°Light
7

2023 Mill Race Marathon

Clear conditions throughout the day.

2023
clear-day
55°/79°-
8

2022 Mill Race Marathon

Partly cloudy throughout the day with rain clearing later.

2022
rain
56°/73°Light
8

2019 Mill Race Marathon

Partly cloudy throughout the day.

2019
clear-day
68°/86°-
7

2018 Mill Race Marathon

Clear conditions throughout the day with rain.

2018
clear-day
59°/63°-
9

2017 Mill Race Marathon

Clear conditions throughout the day.

2017
clear-day
65°/90°-
7

2016 Mill Race Marathon

Partly cloudy throughout the day.

2016
partly-cloudy-day
67°/82°-
8

2015 Mill Race Marathon

Partly cloudy throughout the day with late afternoon rain.

2015
cloudy
63°/74°-
7

2014 Mill Race Marathon

Clear conditions throughout the day.

2014
clear-day
55°/81°-
8

2013 Mill Race Marathon

Becoming cloudy in the afternoon.

2013
clear-day
51°/81°-
8
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