Hourly Weather Forecast for Grand Marais MN The Weather Weather in Grand Marais, Minnesota is constantly changing. No matter if it's sunny or overcast, you can expect an array of weather conditions throughout the year. Starting from the gorgeous springtime flowers blossoming to the hot and sun-filled summer days, to the vibrant autumn foliage, and the wintry landscapes during winter, Grand Marais, Minnesota provides a wide selection of climate experiences during the year.
