
From the Organizer
The Chicago River Swim is the signature event of A Long Swim, a 501(c)3 charitable organization that raises funds for ALS collaborative research through Northwestern University’s Feinberg School of Medicine and local youth learn-to-swim programs. The event is made possible through the support of dozens of local and federal agencies, area businesses, and the entire Chicago community.
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
72°
Typical Low
59°
Based on US Climate Normals data from Chicago Northerly Is, 3 mi from the venue.
Host City
Population
2,707,648
as of 2023
Elevation
594 ft
Nearest Airport
MDW
Chicago Midway International Airport · 6 mi
Time Zone
Central Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Chicago River Swim, put it on the calendar, and turn “someday” into a start date.
Coming Up
J-HAWK JUNE/JULY PRIVATE SWIM LESSONS
87 miles away
Swim Neshonoc
224 miles away
Central Illinois Open Water Swim
109 miles away
Open Water Swim CHICAGO
Less than a mile away
From Endurance Grid
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
Swimming events drop you into something that demands navigation, feel, and focus all at once. It's a sport that rewards the quietly competitive — the ones who do the work in the water before anyone's watching.
Open water races from 1 mile to marathon distance. Just you, the water, and whatever you've got left.
Frequently Asked Questions (FAQs)
Chicago River Swim
Sep 20, 2026