Grand Marais Minnesota 7 Day Weather Forecast The Weather Atmospheric conditions inside Grand Marais, Minnesota is perpetually shifting. Whether sunny or cloudy, look forward to an array of weather conditions throughout the year. From the breathtaking spring flowers blossoming to the hot and sun-soaked summer days, to the scenic autumn foliage, and the snow-covered landscapes in winter, Grand Marais, Minnesota presents a wide variety of climate experiences during the year.
