Historical Race Day Weather for the Illinois Marathon

April 25, 2026

Race day snapshot

Overcast

Start Line Conditions

Start Temp 51°F 11°C

Start Humidity 97% Humidity

Wind NNE 14 mph Wind

Race day high 71°F 22°C

Race day low 50°F 10°C

PR Score 98.91 Normal score 99.12

Course Score 99.08 Course-only Score

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April 26, 2025

Race day snapshot

Overcast

Start Line Conditions

Start Temp 47°F 8°C

Start Humidity 78% Humidity

Wind NNE 12 mph Wind

Race day high 60°F 16°C

Race day low 45°F 7°C

PR Score 99.08 Normal score 99.12

Course Score 99.08 Course-only Score

April 27, 2024

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 64°F 18°C

Start Humidity 82% Humidity

Wind S 19 mph Wind

Race day high 78°F 26°C

Race day low 58°F 14°C

PR Score 95.28 Normal score 99.12

Course Score 99.08 Course-only Score

April 27, 2019

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 46°F 8°C

Start Humidity 69% Humidity

Wind SE 7 mph Wind

Race day high 58°F 14°C

Race day low 45°F 7°C

PR Score 99.08 Normal score 99.12

Course Score 99.08 Course-only Score

April 28, 2018

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 39°F 4°C

Start Humidity 76% Humidity

Wind N 13 mph Wind

Race day high 56°F 13°C

Race day low 38°F 3°C

PR Score 99.08 Normal score 99.12

Course Score 99.08 Course-only Score

April 22, 2017

Race day snapshot

Overcast

Start Line Conditions

Start Temp 43°F 6°C

Start Humidity 72% Humidity

Wind ENE 15 mph Wind

Race day high 56°F 13°C

Race day low 43°F 6°C

PR Score 99.08 Normal score 99.12

Course Score 99.08 Course-only Score

April 30, 2016

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 53°F 12°C

Start Humidity 86% Humidity

Wind E 13 mph Wind

Race day high 61°F 16°C

Race day low 48°F 9°C

PR Score 98.77 Normal score 99.12

Course Score 99.08 Course-only Score

April 25, 2015

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 48°F 9°C

Start Humidity 89% Humidity

Wind E 12 mph Wind

Race day high 55°F 13°C

Race day low 46°F 8°C

PR Score 99.08 Normal score 99.12

Course Score 99.08 Course-only Score

April 26, 2014

Race day snapshot

Mostly Clear

Start Line Conditions

Start Temp 50°F 10°C

Start Humidity 77% Humidity

Wind SW 6 mph Wind

Race day high 74°F 23°C

Race day low 48°F 9°C

PR Score 98.76 Normal score 99.12

Course Score 99.08 Course-only Score

April 27, 2013

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 46°F 8°C

Start Humidity 83% Humidity

Wind E 5 mph Wind

Race day high 62°F 17°C

Race day low 44°F 7°C

PR Score 99.08 Normal score 99.12

Course Score 99.08 Course-only Score