Historical Race Day Weather for the Heart of America Marathon

September 1, 2025

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 63°F 17°C

Start Humidity 77% Humidity

Wind ESE 3 mph Wind

Race day high 72°F 22°C

Race day low 63°F 17°C

PR Score 94.38 Normal score 93.44

Course Score 96.56 Course-only Score

Course-adjusted pacing

Want to run your best Heart of America Marathon?

Heart of America Marathon Pace Bands are adjusted for the specific terrain of the course, your goal time, and pacing strategy.

Build your Heart of America Marathon pace band

Easy to useCourse-aware pacing, goal-time based splits, and a cleaner race day plan.See all pace bands

September 2, 2024

Race day snapshot

Clear

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 86% Humidity

Wind ENE 5 mph Wind

Race day high 76°F 24°C

Race day low 56°F 13°C

PR Score 94.89 Normal score 93.44

Course Score 96.56 Course-only Score

September 4, 2023

Race day snapshot

Clear

Start Line Conditions

Start Temp 72°F 22°C

Start Humidity 93% Humidity

Wind SSE 8 mph Wind

Race day high 90°F 32°C

Race day low 72°F 22°C

PR Score 88.96 Normal score 93.44

Course Score 96.56 Course-only Score

September 5, 2022

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 67°F 19°C

Start Humidity 84% Humidity

Wind ENE 6 mph Wind

Race day high 86°F 30°C

Race day low 66°F 19°C

PR Score 91.68 Normal score 93.44

Course Score 96.56 Course-only Score

September 6, 2021

Race day snapshot

Clear

Start Line Conditions

Start Temp 61°F 16°C

Start Humidity 92% Humidity

Wind SSW 1 mph Wind

Race day high 87°F 31°C

Race day low 60°F 16°C

PR Score 93.32 Normal score 93.44

Course Score 96.56 Course-only Score

September 7, 2020

Race day snapshot

Clear

Start Line Conditions

Start Temp 74°F 23°C

Start Humidity 81% Humidity

Wind SSW 1 mph Wind

Race day high 90°F 32°C

Race day low 72°F 22°C

PR Score 0.00 Normal score 93.44

Course Score 0.00 Course-only Score

September 2, 2019

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 63°F 17°C

Start Humidity 100% Humidity

Wind ESE 1 mph Wind

Race day high 85°F 29°C

Race day low 62°F 17°C

PR Score 92.09 Normal score 93.44

Course Score 96.56 Course-only Score

September 3, 2018

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 73°F 23°C

Start Humidity 91% Humidity

Wind SSE 3 mph Wind

Race day high 88°F 31°C

Race day low 72°F 22°C

PR Score 89.73 Normal score 93.44

Course Score 96.56 Course-only Score

September 4, 2017

Race day snapshot

Clear

Start Line Conditions

Start Temp 69°F 21°C

Start Humidity 90% Humidity

Wind SSW 5 mph Wind

Race day high 90°F 32°C

Race day low 67°F 19°C

PR Score 90.84 Normal score 93.44

Course Score 96.56 Course-only Score

September 5, 2016

Race day snapshot

Mostly Clear

Start Line Conditions

Start Temp 69°F 21°C

Start Humidity 84% Humidity

Wind SE 6 mph Wind

Race day high 90°F 32°C

Race day low 67°F 19°C

PR Score 92.30 Normal score 93.44

Course Score 96.56 Course-only Score

September 7, 2015

Race day snapshot

Clear

Start Line Conditions

Start Temp 73°F 23°C

Start Humidity 84% Humidity

Wind SE 5 mph Wind

Race day high 82°F 28°C

Race day low 72°F 22°C

PR Score 90.31 Normal score 93.44

Course Score 96.56 Course-only Score

September 1, 2014

Race day snapshot

Light Rain

Start Line Conditions

Start Temp 69°F 21°C

Start Humidity 93% Humidity

Wind WSW 13 mph Wind

Race day high 84°F 29°C

Race day low 66°F 19°C

PR Score 92.09 Normal score 93.44

Course Score 96.56 Course-only Score

September 2, 2013

Race day snapshot

Clear

Start Line Conditions

Start Temp 63°F 17°C

Start Humidity 84% Humidity

Wind NNW 8 mph Wind

Race day high 86°F 30°C

Race day low 61°F 16°C

PR Score 93.83 Normal score 93.44

Course Score 96.56 Course-only Score