Glacier National Park Packing List: What to Pack

Pack warm layers, a waterproof rain shell, sturdy waterproof hiking boots, bear spray, and a warm hat and gloves even in summer. Add sunscreen, sunglasses, a daypack, and a reusable water bottle. The park's high elevation and fast-changing weather make versatile layering the priority.

Yes, bear spray is strongly recommended for any hiking, since Glacier has one of the densest grizzly bear populations in the lower 48 states. Carry it somewhere accessible, know how to use it before you go, and always store food and scented items properly at camp.

It can be, especially at higher elevations. Valley towns often reach the 70s and 80s°F in July and August, but Logan Pass and other points along Going-to-the-Sun Road are commonly 15–20 degrees cooler with strong wind, and nights drop into the 40s. Pack a real jacket even for a July trip.

The road typically opens fully by mid-to-late June and can close as early as mid-October, though exact dates depend on snowpack and vary year to year. Check the National Park Service alerts before your trip, since sections at Logan Pass are the last to open and first to close.

Wear sturdy, broken-in, waterproof hiking boots with good traction. Trails can hold snow patches into July at higher elevations and turn muddy after rain. Bring a second pair of shoes for camp or town so your hiking boots have time to dry out.

Yes, snow is possible at higher elevations in any month, particularly around Logan Pass and other points along the Continental Divide. It's uncommon in July and August but not unheard of, so packing a warm layer and a rain shell is smart even for a peak-summer visit.

Bring a properly rated bear canister or use food-storage lockers at backcountry campsites, along with bear spray, layered clothing for sudden weather shifts, and a reliable rain shell. Pack a water filter or purification tablets, since carrying enough water for multi-day routes at altitude isn't practical, and always check trail and bear-activity closures before you set out.

You cannot bring bear spray with you on a commercial flight, in carry-on or checked luggage — it's a pressurized aerosol. Plan to buy or rent it once you arrive near the park instead; outfitters and gear shops in the gateway towns around Glacier (West Glacier, St. Mary, Apgar) routinely stock it for exactly this reason. Don't try to pack it from home if you're flying.

Cell service is spotty to nonexistent through most of Glacier, especially away from the main visitor centers and along Going-to-the-Sun Road. Download offline maps and your trail route before you arrive, and let someone know your hiking plan and expected return time, since you likely won't have a signal to call for help if something goes wrong.

Any overnight stay outside frontcountry campgrounds and lodges, including all backcountry campsites, requires a Glacier backcountry permit obtained in advance. In recent peak summers the park has also required a separate vehicle reservation, beyond the standard entrance pass, to drive certain corridors including Going-to-the-Sun Road. Check nps.gov/glac shortly before your trip, since the exact requirement and dates vary by year.

Pets are not allowed on any Glacier trail or in the backcountry — only on paved roads, in campgrounds, and in parking lots, and always leashed — so plan boarding if hiking with a dog is the goal. Standard guidance keeps you roughly 100 yards from bears and wolves and at least 25 yards from other large animals like moose and mountain goats.