IronHorse Marathon

Riceville, IA, USA · May 1, 2027·
partly-cloudy-day47°·54° high·Breezy·Dry
9
Register

Race Day Weather

partly-cloudy-day
47°at start
59° high
Breezy
Dry
Your goal
0:00:00

Cool morning, breezy conditions

Runners will face a temperature range from 47°F at the start to 59°F by the finish, with average humidity at 65% and a dew point of 41°F. Winds will be out of the WSW at 15 mph, with gusts up to 27 mph, creating a headwind throughout. Runners should consider adjusting their pace early and remain hydrated, as the chance of light rain may also impact conditions.

Race day forecast available in 178 days
partly-cloudy-night9
partly-cloudy-night9
partly-cloudy-night9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
cloudy8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8

Pace Calculator

26.2mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Common Goals:

Get forecast alerts for IronHorse Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Plan

Get your personalized IronHorse 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 Races include a Full Marathon, Half Marathon, 10K and 5K Run. All are USATF Sanctioned. The Full Marathon, Half Marathon and 5K are USATF Certified. The Full Marathon takes place on the Wapsi-Great Western Line (WGWL) Trail located in Riceville, Iowa and the Shooting Star Trail in Minnesota. The Half Marathon, 10K and 5K take place on the WGWL Trail. The WGWL Trail has a Northern Branch and a Southern Branch. The races take place on the Rails-to-Trails recognized paved and concrete laid Northern Branch. The Iowan WGWL Trail is the first and official interstate trail connecting to Minnesota’s Shooting Star Trail. Source

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 Marathon?

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

Is the IronHorse Marathon a Boston Marathon Qualifier?

Yes, the IronHorse Marathon is an official Boston Marathon qualifier.

What is the time limit for the IronHorse Marathon?

The time limit for the IronHorse Marathon is 6 hours.

What will the weather be like for the 2027 IronHorse 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 marathon race plan.

Historical Weather

Based on 6 years of data
Avg Temp
51°F
L:46° H:58°
RunScore
8
Conditions
Rain Freq
33%
2 of 6 yrs
Wind10mph
Dew41°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-night
35°/52°-
9
2025
cloudy
43°/50°-
10
2024
partly-cloudy-day
47°/52°Light
8
2023
cloudy
56°/60°Light
7
2022
clear-day
43°/59°-
9
2021
clear-night
52°/74°-
7