The best time to visit Glacier is generally July, August and September. It is a national park in Montana.
July, August and September tend to bring the best balance of weather, access and conditions. Around then, daytime highs average about 67°F and overnight lows near 47°F.
Glacier's weather is highly variable and can be extreme. Expect warm, sunny summer days but be ready for any type of conditions. In the winter, temperatures can fall well below freezing and typically the park receives considerable amounts of snow. Glacier's geography, straddling the Continental Divide, sets the stage for clashes of two very different climates. Warm, wet Pacific air moves in from the west, and cold, dry Arctic air flows from the northeast. They meet at the Divide.
Trailwind finds the moment a trip is unusually possible: the right season, a cheap fare, your open dates, and rare skies. Browse by calendar: