Cummins Mill Race Half Marathon

Columbus, IN, USA · September 25, 2027·
partly-cloudy-day61°·62° high·Light·Dry
7
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Race Day Weather

partly-cloudy-day
61°at start
77° high
Light
Dry
Your goal
0:00:00

Comfortable temps, big temp swing

Starting at 61°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temps will climb significantly to 77°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 67% is worth noting for effort level, especially in later miles.

Race day forecast available in 328 days
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Pace Calculator

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Race Info

The Mill Race Half Marathon covers 13.1 miles on the Saturday of race weekend, starting and finishing in downtown Columbus, Indiana. The course follows smooth city streets and shaded park trails past the architecture the city is known for, with minimal elevation gain. It is a flat, fast distance suited to personal-best attempts.

Race weekend

Saturday, September 25
7:30 AMMarathon (26.2 mi)
7:30 AMHalf Marathon (13.1 mi)
7:30 AM5K (3.1 mi)
Area Map

Course Map

FAQ

When is the 2027 Cummins Mill Race Half Marathon?

The 2027 Cummins Mill Race Half Marathon will be held on Saturday September 25, 2027.

What will the weather be like for the 2027 Cummins Mill Race Half Marathon?

The forecast calls for a high of 78°F and a low of 58°F with a 13% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 13 years of data
Avg Temp
60°F
L:59° H:62°
RunScore
7
Conditions
Rain Freq
15%
2 of 13 yrs
Wind5mph
Dew56°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-night
50°/54°-
10
2025
clear-night
54°/60°-
8
2024
rain
66°/66°Light
5
2023
clear-night
55°/60°-
8
2022
cloudy
55°/57°-
8
2021
rain
57°/59°Light
7
2019
partly-cloudy-night
68°/72°-
4
2018
partly-cloudy-night
59°/60°-
7
2017
partly-cloudy-night
65°/71°-
5
2016
partly-cloudy-night
66°/69°-
5
2015
cloudy
63°/64°-
6
2014
clear-night
55°/58°-
8
2013
clear-night
51°/58°-
9