What is the weather usually like on race day for the Grand Island Trail Runs?

Based on the last 10 years of weather data for Munising, MI, July race mornings typically start near 58°F and warm to around 77°F. On this calendar date it has rained in 2 of the last 10 years.

← Races in Munising, MI

Grand Island Trail Runs

Sat, Jul 31, 2027

In 265 days

Munising, MI

Williams Landing, Grand Island

Typically 58–77°F · some rain risk

See last 10 years

On this date: rain 2 of the last 10 years

2026

64–82°F

rain

2025

53–68°F

dry

2024

62–86°F

dry

2023

56–72°F

dry

2022

61–82°F

dry

2021

59–67°F

rain

2020

57–74°F

dry

2019

51–74°F

dry

2018

60–81°F

dry

2017

62–83°F

dry

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About this race

Run the rugged, remote shoreline of Lake Superior at the Grand Island Trail Runs, an unforgettable race on a pristine island just offshore from Munising, Michigan. Entry $105 to $175.