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Race Overview
Tunnel Hill Marathon is the shortest of four distances (100 mile, 100 km, 50 mile, and marathon) run together each November on the Tunnel Hill State Trail, a crushed-limestone rail-trail out of Vienna, Illinois that passes through a historic railroad tunnel. The course holds between 340 and 680 feet of elevation with a grade under 2 percent, and the event has produced multiple USATF and world records at the 50-mile and 100-mile distances, including Caitriona Jennings' 12:37:04 100-mile world record set in 2025. The marathon serves as a Boston-qualifying option for runners who want a shorter distance than the ultra events held the same day.
WikipediaFAQ
When is the 2026 Tunnel Hill Marathon?
The 2026 Tunnel Hill Marathon will be held on Saturday November 14, 2026.
Is the Tunnel Hill Marathon a Boston Marathon Qualfier?
Yes, the Tunnel Hill Marathon is an official Boston Marathon qualifier.
What is the time limit for the Tunnel Hill Marathon?
The time limit for the Tunnel Hill Marathon is 12 hours.
Tunnel Hill Marathon Course Map
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Tunnel Hill Marathon Weather History
Tunnel Hill Marathon Weather Averages
Average Temp: 49°, Average Low: 40°, Average High: 59°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 43° | 45° | 48° | 50° | 52° | 54° | 55° | 56° | 56° | 55° | 52° | 50° | 49° |
| Feel | 41° | 42° | 45° | 48° | 50° | 52° | 53° | 54° | 54° | 53° | 50° | 48° | 47° |
| Rain | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Wind | 5mph | 6mph | 7mph | 7mph | 7mph | 7mph | 7mph | 7mph | 7mph | 6mph | 5mph | 5mph | 5mph |
| Dew | 38° | 39° | 39° | 39° | 39° | 39° | 38° | 37° | 37° | 37° | 37° | 38° | 38° |
| RunScore |  | |  | | | | | | | | | | |
Tunnel Hill Marathon 2025
Nov 9, 2025
Partly cloudy throughout the day with morning rain.
Low: 33°, High: 56°, Light Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp |  44° | 43° | 44° | 43° |  43° | 42° | 43° | 43° | 41° | 41° | 39° | 37° | 35° |
| Feel | 37° | 37° | 39° | 36° | 36° | 35° | 37° | 35° | 35° | 34° | 32° | 29° | 27° |
| Rain | - | - | - | - | light | - | - | - | - | - | - | - | - |
| Wind | 14mph | 12mph | 11mph | 12mph | 12mph | 13mph | 11mph | 15mph | 11mph | 11mph | 9mph | 12mph | 12mph |
| Dew | 31° | 31° | 31° | 33° | 33° | 31° | 28° | 26° | 24° | 22° | 20° | 17° | 16° |
| RunScore |  | | | | | | | | | | | | |
Tunnel Hill Marathon 2025
Nov 8, 2025
Partly cloudy throughout the day.
Low: 44°, High: 70°, Light Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 44° | 47° | 52° | 58° | 63° | 69° | 69° | 70° | 70° | 69° | 63° | 58° | 55° |
| Feel | 44° | 47° | 52° | 58° | 63° | 69° | 69° | 70° | 70° | 69° | 63° | 58° | 55° |
| Rain | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Wind | 2mph | 1mph | 0mph | 2mph | 2mph | 3mph | 2mph | 3mph | 3mph | 1mph | 0mph | 0mph | 0mph |
| Dew | 44° | 46° | 50° | 49° | 48° | 45° | 44° | 42° | 40° | 42° | 45° | 47° | 47° |
| RunScore | | | | | | | | | | | | | |
Tunnel Hill Marathon 2024
Nov 10, 2024
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 56°, High: 74°, Moderate Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 67° | 66° | 67° | 68° | 70° | 71° | 73° | 74° | 74° | 73° | 70° | 65° | 63° |
| Feel | 67° | 66° | 67° | 68° | 70° | 71° | 73° | 74° | 74° | 73° | 70° | 65° | 63° |
| Rain | light | light | light | light | light | light | - | - | light | light | light | light | - |
| Wind | 6mph | 5mph | 6mph | 6mph | 9mph | 12mph | 10mph | 11mph | 9mph | 7mph | 3mph | 2mph | 3mph |
| Dew | 64° | 64° | 64° | 63° | 62° | 60° | 58° | 56° | 54° | 53° | 53° | 55° | 55° |
| RunScore | | | |  | | | | | | | | | |
Tunnel Hill Marathon 2024
Nov 9, 2024
Partly cloudy throughout the day with late afternoon rain.
Low: 53°, High: 61°, Moderate Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 54° | 55° | 57° | 59° |  61° | 61° | 61° | 61° | 61° | 60° | 59° | 59° | 58° |
| Feel | 54° | 55° | 57° | 59° | 61° | 61° | 61° | 61° | 61° | 60° | 59° | 59° | 58° |
| Rain | - | - | - | - | - | - | light | - | light | - | - | light | light |
| Wind | 7mph | 7mph | 8mph | 8mph | 7mph | 5mph | 5mph | 6mph | 7mph | 8mph | 5mph | 5mph | 7mph |
| Dew | 44° | 45° | 44° | 45° | 47° | 48° | 51° | 52° | 53° | 54° | 54° | 55° | 56° |
| RunScore | | | | | | | | | | | | | |
Tunnel Hill Marathon 2023
Nov 12, 2023
Clear conditions throughout the day.
Low: 39°, High: 65°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 40° | 44° | 48° | 52° | 56° | 61° | 63° | 65° | 65° | 63° | 55° | 49° | 45° |
| Feel | 40° | 43° | 45° | 52° | 56° | 61° | 63° | 65° | 65° | 63° | 55° | 49° | 45° |
| Rain | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Wind | 0mph | 3mph | 6mph | 3mph | 3mph | 2mph | 3mph | 2mph | 0mph | 0mph | 0mph | 1mph | 0mph |
| Dew | 33° | 35° | 35° | 35° | 36° | 35° | 32° | 30° | 29° | 30° | 33° | 34° | 35° |
| RunScore | | | | | | | | | | | | | |
Tunnel Hill Marathon 2023
Nov 11, 2023
Clear conditions throughout the day.
Low: 36°, High: 58°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 36° | 42° | 45° | 49° | 51° | 55° | 56° | 58° | 58° | 56° | 54° | 53° | 51° |
| Feel | 33° | 38° | 41° | 46° | 51° | 55° | 56° | 58° | 58° | 56° | 54° | 53° | 51° |
| Rain | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Wind | 4mph | 5mph | 8mph | 7mph | 7mph | 8mph | 8mph | 8mph | 7mph | 7mph | 5mph | 5mph | 5mph |
| Dew | 31° | 33° | 34° | 34° | 33° | 34° | 33° | 31° | 31° | 31° | 32° | 33° | 33° |
| RunScore | | | | | | | | | | | | | |
Tunnel Hill Marathon 2022
Nov 12, 2022
Cloudy skies throughout the day with rain or snow clearing later.
Low: 29°, High: 36°, Moderate Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 30° | 30° | 31° | 32° | 32° | 33° | 33° | 33° | 33° | 32° | 32° | 32° | 32° |
| Feel | 23° | 23° | 24° | 24° | 25° | 25° | 25° | 26° | 25° | 24° | 25° | 24° | 24° |
| Rain | light | - | - | - | - | - | - | - | - | - | - | - | - |
| Wind | 6mph | 7mph | 8mph | 10mph | 10mph | 10mph | 10mph | 8mph | 10mph | 9mph | 8mph | 10mph | 9mph |
| Dew | 27° | 26° | 26° | 25° | 25° | 24° | 24° | 23° | 23° | 23° | 22° | 22° | 22° |
| RunScore | | | | | | | | | | | | | |
Tunnel Hill Marathon 2021
Nov 13, 2021
Partly cloudy throughout the day.
Low: 33°, High: 44°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 33° | 36° | 38° | 40° | 42° | 43° | 43° | 44° | 43° | 42° |  40° | 37° | 34° |
| Feel | 33° | 32° | 34° | 36° | 38° | 40° | 40° | 40° | 39° | 39° | 36° | 37° | 34° |
| Rain | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Wind | 2mph | 5mph | 5mph | 5mph | 5mph | 5mph | 6mph | 6mph | 7mph | 6mph | 7mph | 2mph | 0mph |
| Dew | 26° | 27° | 26° | 27° | 27° | 27° | 27° | 27° | 27° | 28° | 28° | 29° | 30° |
| RunScore | | | | | | | | | | | | | |
Tunnel Hill Marathon 2020
Nov 14, 2020
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 38°, High: 69°, Heavy Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM | 7PM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 42° | 44° | 47° | 52° | 53° | 56° | 58° | 60° | 61° | 60° | 59° | 63° | 64° |
| Feel | 39° | 39° | 43° | 52° | 53° | 56° | 58° | 60° | 61° | 60° | 59° | 63° | 64° |
| Rain | light | light | - | - | - | - | light | - | light | light | - | - | - |
| Wind | 6mph | 10mph | 9mph | 9mph | 10mph | 8mph | 9mph | 9mph | 7mph | 6mph | 8mph | 10mph | 8mph |
| Dew | 39° | 41° | 42° | 43° | 43° | 44° | 45° | 46° | 47° | 48° | 49° | 49° | 49° |
| RunScore | | | | | | | | | | | | | |