In 133 days · Sun, Mar 14, 2027
Don't let race day sneak up
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Sunday, March 14th, 2027
3795 Campton Hills Dr., St. Charles IL
10K
29–47°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2026
27–35°F
dry
2025
47–74°F
dry
2024
39–66°F
rain
2023
14–34°F
dry
2022
31–59°F
dry
2021
34–44°F
dry
2020
29–37°F
rain
2019
38–58°F
rain
2018
21–45°F
dry
2017
12–23°F
dry
Best months to race in Illinois →
About this race
Registration Has Moved
The Fox Valley Winter Challenge Trail Series has returned to a single race website for 2027 registration: https://runsignup.com/Race/IL/Batavia/FoxValleyWinterChallengeTrailSeries
The 5K, 8K, and 10K events are now all managed through one convenient registration page, allowing participants to register for any combination of races and take advantage of our new series swag rewards.
The 2027 schedule includes:
5K – January 23, 2027
8K – February 20, 2027
10K – March 14, 2027
Please visit the official 2027 Winter Challenge registration page:
https://runsignup.com/Race/IL/Batavia/FoxValleyWinterChallengeTrailSeries
We look forward to seeing you on the trails this winter!
Course map
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