The 2026 event has concluded.

Des Plaines River Trail Marathon

Lincolnshire, IL, USA · October 10, 2026
clear-day60°·79° high·Windy·Dry
7
Register
Weather
Pace Calc
Course
Race Info
FAQ
History

Race Day Weather

clear-day
60°at start
79° high
Windy
Dry

Warm start, windy conditions ahead

Runners will face temperatures starting at 60°F, rising to 79°F by race end. Winds will be from the SSW at 16 mph, presenting a headwind for parts of the course. With humidity at 47%, hydration will be key; runners should plan to adjust their pacing strategy, especially in the latter stages.

partly-cloudy-night9
partly-cloudy-day9
partly-cloudy-day9
clear-day8
clear-day8
clear-day7
partly-cloudy-day7
clear-day6
partly-cloudy-day6
partly-cloudy-day6
clear-day7
clear-day7
clear-day8
partly-cloudy-night8
partly-cloudy-night8

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
—
Weather Adj.
—
Common Goals:

Get forecast alerts for Des Plaines River Trail Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Info

The Des Plaines River Trail Marathon takes place each October in Lake County, Illinois, offering marathon, half marathon, 50K, and 50 mile distances on the Des Plaines River Trail. The route is a flat, crushed gravel trail through forest preserves and wetlands, with road crossings handled by bridges or viaducts. The marathon is a Boston Marathon qualifier. All distances start and finish at Half Day Forest Preserve near Lincolnshire/Vernon Hills, Illinois. Source

Website
Area Map

Course Map

Course Map Unavailable

We don't have course map data for Des Plaines River Trail Marathon yet. If you have a GPX file (or other format) for this race, we'd love to add it!

Request / Submit Map

FAQ

Ask a Question about the Des Plaines River Trail Marathon

Racecast Concierge (free during beta)

Ask a question about the Des Plaines River Trail Marathon and we'll do the hard part and find the answer for you within 48 hours.

By using Racecast Concierge, you agree to receive email alerts pertaining to the Des Plaines River Trail Marathon and general racecast.io updates.

When is the 2026 Des Plaines River Trail Marathon?

The 2026 Des Plaines River Trail Marathon will be held on Saturday October 10, 2026.

Is the Des Plaines River Trail Marathon a Boston Marathon Qualifier?

Yes, the Des Plaines River Trail Marathon is an official Boston Marathon qualifier.

What is the time limit for the Des Plaines River Trail Marathon?

The time limit for the Des Plaines River Trail Marathon is 10.5 hours.

What will the weather be like for the 2026 Des Plaines River Trail Marathon?

The forecast calls for a high of 79°F and a low of 58°F with a 0% chance of rain.

Historical Weather

Based on 16 years of data
Avg Temp
58°F
L:47° H:61°
RunScore
8
Conditions
Rain Freq
25%
4 of 16 yrs
Wind10mph
Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2026 Des Plaines River Trail Marathon

Becoming cloudy in the afternoon.

2026
partly-cloudy-day
60°/79°-
7

2025 Des Plaines River Trail Marathon

Partly cloudy throughout the day.

2025
clear-day
50°/65°-
9

2024 Des Plaines River Trail Marathon

Becoming cloudy in the afternoon with late afternoon rain.

2024
clear-day
60°/65°-
8

2023 Des Plaines River Trail Marathon

Cloudy skies throughout the day with a chance of rain throughout the day.

2023
rain
51°/55°Light
6

2022 Des Plaines River Trail Marathon

Clear conditions throughout the day.

2022
clear-day
36°/54°-
7

2021 Des Plaines River Trail Marathon

Clear conditions throughout the day.

2021
clear-day
45°/67°-
8

2019 Des Plaines River Trail Marathon

Partly cloudy throughout the day.

2019
clear-day
38°/56°-
6

2018 Des Plaines River Trail Marathon

Clear conditions throughout the day.

2018
clear-day
34°/54°-
8

2017 Des Plaines River Trail Marathon

Partly cloudy throughout the day with a chance of rain throughout the day.

2017
rain
62°/64°Light
6

2016 Des Plaines River Trail Marathon

Partly cloudy throughout the day.

2016
cloudy
56°/68°-
7

2015 Des Plaines River Trail Marathon

Clear conditions throughout the day.

2015
clear-day
33°/52°-
8

2014 Des Plaines River Trail Marathon

Partly cloudy throughout the day with morning rain.

2014
cloudy
46°/50°Light
7

2013 Des Plaines River Trail Marathon

Partly cloudy throughout the day with rain.

2013
cloudy
44°/53°Light
8

2012 Des Plaines River Trail Marathon

Partly cloudy throughout the day.

2012
partly-cloudy-day
42°/57°-
9

2011 Des Plaines River Trail Marathon

Clear conditions throughout the day.

2011
clear-day
38°/66°-
8

2010 Des Plaines River Trail Marathon

Partly cloudy throughout the day.

2010
cloudy
60°/71°-
8

More IL Races

Starved Rock Country Marathon
2027-05-08 · 42.200km · Ottawa, IL, USA
Quad Cities Marathon
2027-09-26 · 42.200km · Moline, IL, USA
Chicago Marathon
2027-10-10 · 42.200km · Chicago, IL, USA
Springfield Marathon
2026-11-07 · 42.200km · Springfield, IL, USA
Tunnel Hill Marathon
2026-11-14 · 42.200km · Vienna, IL, USA
Rend Lake Marathon
2027-03-27 · Marathon · Whittington, IL, USA
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR