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Race Overview
The Grand Island Trail Marathon takes place on Grand Island, a roughly 13,500-acre island in Lake Superior reachable only by ferry from Munising, Michigan. The race offers 50K, marathon, and half marathon distances along the island's perimeter trail, passing 300-foot Jacobsville sandstone cliffs and shoreline views of Pictured Rocks National Lakeshore. The marathon course measures about 27 miles, longer than the standard 26.2-mile distance. Entries are capped at 500 runners combined across all three distances.
WikipediaNews
July 26, 2023
Upcoming marathons and other races happening this weekend.
FAQ
When is the 2027 Grand Island Trail Marathon?
The 2027 Grand Island Trail Marathon will be held on Saturday July 31, 2027.
Is the Grand Island Trail Marathon a Boston Marathon Qualfier?
No, the Grand Island Trail Marathon is NOT a Boston Marathon qualifier.
What is the time limit for the Grand Island Trail Marathon?
The time limit for the Grand Island Trail Marathon is 7.5 hours.
Grand Island Trail Marathon Weather History
Grand Island Trail Marathon Weather Averages
Average Temp: 67°, Average Low: 59°, Average High: 75°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 62° | 63° | 66° | 68° | 70° | 71° | 73° | 73° |
| Feel | 62° | 63° | 66° | 68° | 70° | 71° | 73° | 73° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 6mph | 8mph | 8mph | 8mph | 8mph | 8mph | 9mph |
| Dew | 58° | 58° | 59° | 60° | 61° | 61° | 61° | 61° |
| RunScore |  | | | | | |  | |
Grand Island Trail Marathon 2026
Jul 25, 2026
Partly cloudy throughout the day.
Low: 66°, High: 78°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp |  67° | 66° |  67° | 70° | 72° | 75° | 75° | 74° |
| Feel | 67° | 66° | 67° | 70° | 72° | 75° | 75° | 74° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 8mph | 7mph | 9mph | 7mph | 8mph | 9mph | 6mph | 7mph |
| Dew | 57° | 58° | 58° | 60° | 61° | 63° | 63° | 64° |
| RunScore | |  | | | | | | |
Grand Island Trail Marathon 2025
Jul 26, 2025
Clear conditions throughout the day.
Low: 62°, High: 88°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 62° | 64° | 70° | 73° | 78° | 79° | 83° | 85° |
| Feel | 62° | 64° | 70° | 73° | 78° | 79° | 84° | 84° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 7mph | 6mph | 6mph | 7mph | 8mph | 5mph | 6mph |
| Dew | 58° | 58° | 59° | 60° | 62° | 60° | 62° | 59° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2024
Jul 27, 2024
Clear conditions throughout the day.
Low: 61°, High: 82°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 61° | 64° | 67° | 71° | 74° | 78° | 80° | 82° |
| Feel | 61° | 64° | 67° | 71° | 74° | 78° | 81° | 83° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 7mph | 5mph | 9mph | 9mph | 9mph | 10mph | 13mph | 10mph |
| Dew | 55° | 56° | 58° | 59° | 61° | 63° | 62° | 63° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2023
Jul 29, 2023
Partly cloudy throughout the day.
Low: 56°, High: 68°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 60° | 61° | 62° | 63° | 65° | 66° | 66° | 66° |
| Feel | 60° | 61° | 62° | 63° | 65° | 66° | 66° | 66° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 5mph | 0mph | 9mph | 14mph | 11mph | 7mph | 15mph | 13mph |
| Dew | 56° | 57° | 58° | 58° | 58° | 60° | 59° | 58° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2022
Jul 30, 2022
Clear conditions throughout the day.
Low: 54°, High: 78°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 58° | 62° | 64° | 69° | 74° | 72° | 75° | 75° |
| Feel | 58° | 62° | 64° | 69° | 74° | 72° | 75° | 75° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 8mph | 9mph | 8mph | 8mph | 5mph | 7mph | 8mph | 9mph |
| Dew | 54° | 58° | 59° | 59° | 61° | 61° | 63° | 62° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2021
Jul 24, 2021
Clear conditions throughout the day with a chance of rain throughout the day.
Low: 66°, High: 78°, Heavy Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 72° | 72° | 72° |  71° | 72° | 71° | 73° | 73° |
| Feel | 72° | 72° | 72° | 71° | 72° | 71° | 73° | 73° |
| Rain | - | - | - | light | light | light | light | light |
| Wind | 9mph | 9mph | 10mph | 7mph | 6mph | 7mph | 0mph | 14mph |
| Dew | 69° | 69° | 69° | 68° | 68° | 68° | 69° | 65° |
| RunScore | | | |  | | |  | |
Grand Island Trail Marathon 2019
Jul 27, 2019
Partly cloudy throughout the day.
Low: 63°, High: 75°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 67° | 69° | 73° | 74° | 73° | 73° | 75° | 75° |
| Feel | 67° | 69° | 73° | 74° | 73° | 73° | 75° | 75° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 7mph | 5mph | 8mph | 14mph | 14mph | 11mph | 8mph |
| Dew | 64° | 65° | 66° | 65° | 62° | 62° | 61° | 63° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2018
Jul 21, 2018
Cloudy skies throughout the day with rain clearing later.
Low: 58°, High: 65°, Heavy Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 64° | 63° | 64° | 63° | 64° | 65° | 65° | 62° |
| Feel | 64° | 63° | 64° | 63° | 64° | 65° | 65° | 62° |
| Rain | heavy | moderate | light | - | - | - | - | - |
| Wind | 10mph | 16mph | 16mph | 13mph | 9mph | 11mph | 17mph | 14mph |
| Dew | 64° | 63° | 64° | 63° | 63° | 64° | 62° | 60° |
| RunScore | |  | | | | | | |
Grand Island Trail Marathon 2017
Jul 22, 2017
Partly cloudy throughout the day.
Low: 64°, High: 79°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 64° | 65° | 68° | 70° | 73° | 78° | 79° | 78° |
| Feel | 64° | 65° | 68° | 70° | 73° | 78° | 79° | 78° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 5mph | 6mph | 0mph | 5mph | 0mph | 5mph | 6mph |
| Dew | 64° | 65° | 66° | 67° | 67° | 66° | 66° | 65° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2016
Jul 23, 2016
Clear conditions throughout the day.
Low: 59°, High: 76°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 60° | 65° | 72° | 71° | 72° | 76° | 74° | 74° |
| Feel | 60° | 65° | 72° | 71° | 72° | 76° | 74° | 74° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 3mph | 5mph | 5mph | 5mph | 3mph | 5mph | 8mph | 6mph |
| Dew | 58° | 60° | 61° | 63° | 64° | 65° | 64° | 65° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2015
Jul 25, 2015
Partly cloudy throughout the day with early morning rain.
Low: 65°, High: 78°, Heavy Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 65° | 68° | 69° | 70° | 73° | 73° | 73° | 74° |
| Feel | 65° | 68° | 69° | 70° | 73° | 73° | 73° | 74° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 3mph | 6mph | 9mph | 8mph | 11mph | 13mph | 9mph |
| Dew | 61° | 62° | 62° | 62° | 62° | 62° | 62° | 62° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2014
Jul 26, 2014
Partly cloudy throughout the day with rain in the morning and afternoon.
Low: 55°, High: 76°, Light Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 66° | 66° | 67° | 69° | 71° | 70° | 71° | 76° |
| Feel | 66° | 66° | 67° | 69° | 71° | 70° | 71° | 76° |
| Rain | - | light | - | - | - | - | - | - |
| Wind | 7mph | 9mph | 8mph | 8mph | 8mph | 9mph | 11mph | 7mph |
| Dew | 61° | 62° | 62° | 64° | 64° | 64° | 64° | 65° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2013
Jul 27, 2013
Cloudy skies throughout the day.
Low: 51°, High: 57°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 52° | 51° | 52° | 53° | 55° | 56° | 57° | 55° |
| Feel | 52° | 51° | 52° | 53° | 55° | 56° | 57° | 55° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 7mph | 0mph | 5mph | 5mph | 5mph | 5mph | 5mph | 9mph |
| Dew | 47° | 49° | 48° | 47° | 47° | 49° | 49° | 50° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2012
Jul 28, 2012
Clear conditions throughout the day.
Low: 50°, High: 74°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 50° | 54° | 65° | 70° | 71° | 70° | 72° | 73° |
| Feel | 50° | 54° | 65° | 70° | 71° | 70° | 72° | 73° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 7mph | 7mph | 0mph | 3mph | 8mph | 10mph | 11mph | 10mph |
| Dew | 48° | 51° | 57° | 59° | 59° | 58° | 58° | 59° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2011
Jul 30, 2011
Partly cloudy throughout the day with late afternoon rain.
Low: 60°, High: 91°, Heavy Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 62° | 66° | 73° | 79° | 83° | 84° | 87° | 88° |
| Feel | 62° | 66° | 73° | 79° | 83° | 85° | 88° | 88° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 9mph | 7mph | 8mph | 8mph | 10mph | 8mph | 3mph | 5mph |
| Dew | 54° | 57° | 57° | 56° | 59° | 62° | 62° | 61° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2010
Aug 1, 2010
Clearing in the afternoon.
Low: 64°, High: 83°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 66° | 66° | 69° | 72° | 75° | 78° | 79° | 80° |
| Feel | 66° | 66° | 69° | 72° | 75° | 78° | 79° | 82° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 8mph | 6mph | 10mph | 9mph | 5mph | 6mph | 3mph | 7mph |
| Dew | 65° | 64° | 65° | 67° | 67° | 66° | 65° | 66° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2009
Jul 25, 2009
Cloudy skies throughout the day with late afternoon rain.
Low: 58°, High: 64°, Light Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 62° | 62° | 63° | 62° | 64° | 63° | 63° | 62° |
| Feel | 62° | 62° | 63° | 62° | 64° | 63° | 63° | 62° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 0mph | 7mph | 7mph | 7mph | 7mph | 8mph | 6mph | 9mph |
| Dew | 58° | 57° | 58° | 57° | 58° | 57° | 58° | 58° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2008
Jul 26, 2008
Partly cloudy throughout the day.
Low: 62°, High: 75°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 63° | 64° | 67° | 68° | 68° | 68° | 69° | 69° |
| Feel | 63° | 64° | 67° | 68° | 68° | 68° | 69° | 69° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 7mph | 7mph | 6mph | 14mph | 13mph | 10mph | 15mph | 17mph |
| Dew | 53° | 53° | 54° | 54° | 53° | 54° | 54° | 53° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2007
Jul 28, 2007
Clear conditions throughout the day.
Low: 54°, High: 68°
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 55° | 60° | 65° | 66° | 68° | 68° | 68° | 68° |
| Feel | 55° | 60° | 65° | 66° | 68° | 68° | 68° | 68° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 0mph | 10mph | 9mph | 7mph | 11mph | 13mph | 9mph |
| Dew | 51° | 54° | 55° | 56° | 57° | 56° | 56° | 58° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2006
Jul 29, 2006
Partly cloudy throughout the day with rain clearing later.
Low: 64°, High: 72°, Heavy Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 68° | 67° | 66° | 66° | 66° | 67° | 69° | 66° |
| Feel | 68° | 67° | 66° | 66° | 66° | 67° | 69° | 66° |
| Rain | - | - | light | moderate | light | - | - | - |
| Wind | 7mph | 15mph | 9mph | 6mph | 7mph | 9mph | 5mph | 11mph |
| Dew | 65° | 64° | 64° | 64° | 63° | 64° | 64° | 62° |
| RunScore | | | | | | | | |
Grand Island Trail Marathon 2005
Jul 30, 2005
Partly cloudy throughout the day with afternoon rain.
Low: 48°, High: 70°, Heavy Rain
| Time | 7AM | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM |
|---|---|---|---|---|---|---|---|---|
| Temp | 53° | 55° | 58° | 62° | 67° | 68° | 70° | 70° |
| Feel | 53° | 55° | 58° | 62° | 67° | 68° | 70° | 70° |
| Rain | - | - | - | - | - | - | - | - |
| Wind | 6mph | 3mph | 6mph | 6mph | 7mph | 6mph | 3mph | 8mph |
| Dew | 47° | 45° | 46° | 53° | 55° | 54° | 56° | 55° |
| RunScore | | | | | | | | |