Des Plaines River Trail 50M
Race Day Weather
Comfortable temps, big temp swing, moderate wind
Mild 59°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 79°F by later miles, so expect fading conditions as the race progresses. Moderate winds around 16mph may affect pacing on open sections of the course.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Des Plaines River Trail 50M
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 50 Mile starts and finishes at Half Day Forest Preserve in Vernon Hills, Illinois, and covers the Des Plaines River Trail in long out-and-back legs, with the farthest turnaround at Wadsworth in the north of Lake County. The surface is wide, flat crushed limestone that moves between shaded forest and open wetland, and bridges or viaducts carry the trail over the major roads, leaving only four minor road crossings. The race runs on the Saturday of race weekend, ahead of the marathon and half marathon.
