Grand Marais The Bay of Grand Marais Minnesota 14 Day Weather in Grand Marais, Minnesota is always varying. No matter if it's clear or cloudy, expect a variety of weather conditions throughout the year. Beginning in the gorgeous springtime flowers blooming to the balmy and sun-filled summertime days, to the vibrant fall foliage, and the wintry landscapes during winter, Grand Marais, Minnesota provides a varied assortment of weather experiences throughout the year.
