Des Moines St. Paddys Marathon
Race Day Weather
Cold start — layer up, big temp swing
Runners will start in chilly 37°F conditions — dress in layers for the corral and plan to shed early. Temps will climb significantly to 53°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Des Moines St. Paddys Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Des Moines St. Paddys 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 Info
The Des Moines St. Paddy's Half Marathon, 5K & Marathon Run/Walk is held each March in downtown Des Moines, Iowa, starting and finishing near E Locust Street and Pennsylvania Avenue. It is organized by All Community Events under the IowaRuns.com banner. The event offers marathon, half marathon, and 5K distances on paved roads, plus kids' races, with the marathon course covering the half marathon route twice as an out-and-back.
