Illinois Marathon
Champaign-Urbana, IL, USA · April 25, 2026
Race Day Weather
47°at start
47° high
Breezy
Slight chance
Cool temps, potential gusts
Runners will face cool temperatures starting at 46°F and barely rising to 47°F by the finish. Wind will be from the NE at 14 mph with gusts up to 22 mph, creating a challenging headwind. With high humidity at 91%, runners should consider adjusting their pace to conserve energy and stay hydrated.
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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 47°F and a low of 42°F with a 29% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.
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