August 2023 Historical Weather at Grand Marais Minnesota Climate at the heart of Grand Marais, Minnesota is always fluctuating. Whether it's bright or overcast, anticipate a selection of climate patterns throughout the year. From the beautiful springtime flowers blossoming to the hot and sun-soaked summertime days, to the scenic fall foliage, and the snow-covered landscapes in winter, Grand Marais, Minnesota offers a varied assortment of weather experiences throughout the year.
