Glacier National Park Weather Forecast and Summary 

The weather in Glacier National Park is always changing and that is what makes Glacier Park so unique and so beautiful.

Expect snow during any month of the year. Yes, snow in July and August has occurred at the higher elevations!

The main thing to remember when you visit Glacier National Park is to be prepared for a change in the weather.

When you are in Glacier National Park, the weather you will experience depends on if you are on the east side of Glacier Park or the west side.

The weather also varies based on the elevation you are at. For example, you might start your day at West Glacier where it is overcast and warm. As you drive up the Going to the Sun road, you get deeper into the mountains where the clouds start to form storm clouds. As you gain elevation to Logan Pass, afternoon thunderstorms start to build and as you hike the boardwalk to Hidden Lake, it might start to hail on you.

After you complete your hike and watch the mountain goats along the trail, you head down the east side of the Continental Divide toward St Mary. The east side of Glacier Park is usually sunny, but it is also usually windy! Watch for the whitecaps on St Mary lake as you drive above the shoreline. It is a rare day when the wind isn't blowing on the east side of Glacier Park.

As we mentioned, the weather in Glacier Park is always changing and that is what makes Glacier so unique. In order to be prepared for the weather you should check both the West Glacier weather forecast and the East Glacier weather forecast.

Another great way to check the current weather conditions is to look out the window..... or take a look at the live Glacier National Park webcams.

Overview of Glacier National Park Weather

Spring in Glacier National Park is the time of melting snow and spring rains. At the lower elevations daytime temperatures reach the 60's and nights can still drop below freezing. Make sure you have good raingear and good waterproof boots if you are going to take any extended hikes.

Summer months in Glacier Park are usually warm and tend to be drier than the spring time. Daytime highs may be in the 80's but expect more 70 degree weather at the lower elevations. In the mountains, a nice summer day is usually in the 60 to 70 degree range. Summer nights are usually cool, which makes for nice sleeping weather. Lower elevations drop into the 50's and at the higher elevations, it can freeze almost any night.

Autumn is one of the best times to visit Glacier National Park. If you are lucky to experience a beautiful autumn day in Glacier Park, it will be one you will remember. Days start off cool, but can warm into the 70's. At night, the temperatures usually approach or drop below freezing, which gives the vegetation a light touch of frost that creates the beautiful fall foliage.

Winter in Glacier Park usually means snow, and in some areas, lots of snow. Be prepared for snow and cold, your typical winter conditions in the mountains. Most of Glacier Park visitor services close down for the winter, but the park is still open and exploring Glacier in the winter is a great experience. You just need to be prepared for icy roads, deep snow, and cold temperatures.

Average Monthly Weather Summary For Glacier National Park