Chicagoland Spring Marathon

Schaumburg, IL, USA · May 2, 2027
partly-cloudy-day52°·59° high·Breezy·Dry
9
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Race Day Weather

partly-cloudy-day
52°at start
61° high
Breezy
Dry
Your goal
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Cool start, moderate wind challenges

Runners will face temperatures starting at 52°F and rising to 61°F, with humidity around 65%. A light crosswind will affect miles 1-3 and 8, while tailwinds will help in miles 4-7, 12, and 16. Headwinds will challenge runners in miles 9, 13, 18, 23, and 27, so pacing adjustments may be necessary, especially during those segments. A light layer may be beneficial during pre-race due to the cool feels-like temperature.

Race day forecast available in 199 days
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Pace Calculator

26.2mi
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Race Plan

Get your personalized Chicagoland Spring 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 Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The marathon starts near Schaumburg's business district and runs through Busse Woods, passing lakes, prairie, and an elk pasture. The course is mostly flat with a few short bridge inclines. It is USATF-certified (#IL24010NM) and a Boston Marathon qualifier. A half marathon (#IL21015NM) and a 10K start the same morning, all distances finishing with pizza from Giordano's. Source

Race weekend

Sunday, May 2
7:15 AMMarathon (26.2 mi)
7:15 AMHalf Marathon (13.1 mi)
7:35 AM10K (6.2 mi)

FAQ

When is the 2027 Chicagoland Spring Marathon?

The 2027 Chicagoland Spring Marathon will be held on Sunday May 2, 2027.

Is the Chicagoland Spring Marathon a Boston Marathon Qualifier?

Yes, the Chicagoland Spring Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2027 Chicagoland Spring Marathon?

The forecast calls for a high of 63°F and a low of 48°F with a 14% chance of rain.

Historical Weather

Based on 15 years of data
Avg Temp
61°F
L:57° H:64°
RunScore
6
Conditions
Rain Freq
27%
4 of 15 yrs
Wind11mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2026
partly-cloudy-day
49°/54°Light
9
2025
partly-cloudy-day
46°/55°-
9
2024
rain
52°/57°Light
9
2023
partly-cloudy-day
65°/79°-
4
2022
partly-cloudy-day
69°/74°-
5
2021
cloudy
71°/75°-
4
2019
partly-cloudy-day
62°/70°-
5
2018
cloudy
45°/46°Light
9
2017
partly-cloudy-day
59°/62°-
7
2016
partly-cloudy-day
38°/47°-
9
2015
cloudy
68°/73°-
4
2014
partly-cloudy-day
49°/62°-
9
2013
partly-cloudy-day
64°/79°-
4
2012
partly-cloudy-day
70°/87°-
3
2011
cloudy
43°/44°Light
8