IronHorse Half Marathon

Riceville, IA, USA · May 1, 2027·
partly-cloudy-day47°·49° high·Breezy·Dry
10
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Race Day Weather

partly-cloudy-day
47°at start
58° high
Breezy
Dry
Your goal
0:00:00

Cool start — fast day potential, warming through the race, moderate wind

A cool 47°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 58°F through the course will gradually increase perceived effort in the second half. Moderate winds around 15mph may affect pacing on open sections of the course. Moderate humidity at 67% is worth noting for effort level, especially in later miles.

Race day forecast available in 183 days
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Pace Calculator

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Race Plan

Get your personalized IronHorse Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The IronHorse Half Marathon is a point-to-point run on the Saturday of race weekend. It starts at the Minnesota/Iowa state line and follows the Wapsi-Great Western Line Trail southeast through Mitchell County to the Welcome Center in Riceville, Iowa. The course is a USATF-certified, level railroad grade of paved and concrete trail that winds through woodland, past farmland and the trail corridor's wetlands and oak savanna.

Race weekend

Saturday, May 1
6:30 AMMarathon (26.2 mi)
7:15 AMHalf Marathon (13.1 mi)
7:30 AM10K (6.2 mi)
7:45 AM5K (3.1 mi)

FAQ

When is the 2027 IronHorse Half Marathon?

The 2027 IronHorse Half Marathon will be held on Saturday May 1, 2027.

What is the time limit for the IronHorse Half Marathon?

The time limit for the IronHorse Half Marathon is 3.25 hours.

What will the weather be like for the 2027 IronHorse Half Marathon?

The forecast calls for a high of 64°F and a low of 45°F with a 14% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 5 years of data
Avg Temp
51°F
L:48° H:54°
RunScore
8
Conditions
Rain Freq
40%
2 of 5 yrs
Wind12mph
Dew42°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
37°/49°-
10
2025
cloudy
44°/47°-
10
2024
cloudy
47°/50°Light
9
2023
rain
56°/57°Light
6
2021
clear-day
54°/66°-
7