racecast.ioPartly cloudy throughout the day.
Details
Light Rain
26%
Light Rain
26%
Light Rain
26%
Light Rain
26%
Light Rain
26%
Light Rain
26%
Pre-Race
Race
Post-Race
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Race Overview
The Hidden Gem is a pure road race with minimal backtracks through the distinct neighborhoods of Flossmoor, IL. It’s an ideal race for both the serious and casual runner. Anyone training for the Chicago Marathon will appreciate the September timing, while those with more modest goals are sure to enjoy an entertaining run through beautiful, shady neighborhoods with cheering residents lining the route.
WikipediaFAQ
When is the 2026 Hidden Gem Half Marathon?
The 2026 Hidden Gem Half Marathon will be held on Saturday September 12, 2026.
What is the time limit for the Hidden Gem Half Marathon?
The time limit for the Hidden Gem Half Marathon is 3 hours.
Hidden Gem Half Marathon Weather History
Hidden Gem Half Marathon Weather Averages
Average Temp: 57°, Average Low: 47°, Average High: 65°
| Time | 8AM | 9AM | 10AM |
|---|---|---|---|
| Temp | 51° | 55° | 59° |
| Feel | 51° | 55° | 59° |
| Rain | - | - | - |
| Wind | 9mph | 11mph | 13mph |
| Dew | 42° | 42° | 43° |
| RunScore |  | | |
Hidden Gem Half Marathon 2025
Sep 6, 2025
Becoming cloudy in the afternoon.
Low: 44°, High: 66°
| Time | 8AM | 9AM | 10AM |
|---|---|---|---|
| Temp |  51° | 55° | 59° |
| Feel | 51° | 55° | 59° |
| Rain | - | - | - |
| Wind | 6mph | 9mph | 11mph |
| Dew | 46° | 46° | 47° |
| RunScore |  | | |
Hidden Gem Half Marathon 2024
Sep 7, 2024
Partly cloudy throughout the day.
Low: 50°, High: 64°
| Time | 8AM | 9AM | 10AM |
|---|---|---|---|
| Temp | 52° | 55° | 59° |
| Feel | 52° | 55° | 59° |
| Rain | - | - | - |
| Wind | 13mph | 13mph | 14mph |
| Dew | 38° | 38° | 40° |
| RunScore | | |  |