Illinois Marathon
Champaign-Urbana, IL, USA · April 25, 2026
Race Day Weather
43°at start
65° high
Light
Light rain
Cool start, moderate finish
Runners will face a temperature progression from 43°F to 64°F, with light rain expected throughout. Wind will be gentle at 7 mph from the SE, creating a slight headwind. With humidity at 54%, runners should maintain a conservative pace and stay hydrated, especially as temperatures rise.
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Distance: 26.2mi
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FAQ
When is the 2026 Illinois Marathon?
The 2026 Illinois Marathon will be held on Saturday April 25, 2026.
Is the Illinois Marathon a Boston Marathon Qualifier?
Yes, the Illinois Marathon is an official Boston Marathon qualifier.
What will the weather be like for the 2026 Illinois Marathon?
The forecast calls for a high of 66°F and a low of 43°F with a 48% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.
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