Mill Race Marathon

Columbus, IN, USA · September 26, 2026

60°·73° high·Light·Dry

Weather

Race Day Weather

60°at start

76° high

Light

Dry

Warm conditions, moderate humidity

Runners will face temperatures starting at 60°F and climbing to 74°F, with average humidity at 70%. A light wind from the WNW at 7 mph may pick up to 20 mph in gusts. It is advisable to start conservatively and maintain hydration, especially as the heat increases.

Race day forecast available in 115 days

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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

Website

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

The forecast calls for a high of 78°F and a low of 58°F with a 13% chance of rain.

Historical Weather

Based on 11 years of data

Avg Temp

78°F

L:60° H:78°

RunScore

Conditions

Rain Freq

18%

2 of 11 yrs

Wind8mph

Dew58°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Mill Race Marathon Clear conditions throughout the day. 2025	54°/79°	-	55°
2024 Mill Race Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2024	66°/69°	Light	64°
2023 Mill Race Marathon Clear conditions throughout the day. 2023	55°/79°	-	50°
2022 Mill Race Marathon Partly cloudy throughout the day with rain clearing later. 2022	56°/73°	Light	53°
2019 Mill Race Marathon Partly cloudy throughout the day. 2019	68°/86°	-	65°
2018 Mill Race Marathon Clear conditions throughout the day with rain. 2018	59°/63°	-	51°
2017 Mill Race Marathon Clear conditions throughout the day. 2017	65°/90°	-	64°
2016 Mill Race Marathon Partly cloudy throughout the day. 2016	67°/82°	-	66°
2015 Mill Race Marathon Partly cloudy throughout the day with late afternoon rain. 2015	63°/74°	-	57°
2014 Mill Race Marathon Clear conditions throughout the day. 2014	55°/81°	-	55°
2013 Mill Race Marathon Becoming cloudy in the afternoon. 2013	51°/81°	-	54°