Hourly Weather Forecast for Grand Marais MN The Weather Atmospheric conditions inside the heart of Grand Marais, Minnesota is perpetually fluctuating. Whether it is clear or cloudy, anticipate a selection of climate conditions during the year. Beginning in the beautiful spring flowers blooming to the balmy and sun-soaked summertime days, to the vibrant fall foliage, and the wintry landscapes during winter, Grand Marais, Minnesota provides a varied selection of climate experiences during the year.
