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Know before you go: Glacier

How to stay safe here, what to pack and what to leave at home.

By The Green Adventures · Updated · How we check

Today at Glacier

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Alerts: National Park Service, checked hourly. Forecast: National Weather Service, for St. Mary Visitor Center. Always confirm on the official park site before you set out.

Stay safe

  • Wildlife: Keep at least 25 yards (23 m) from all wild animals, and 100 yards (91 m) from bears and wolves where they live. Never feed wildlife. Use pullouts to watch animals from the road.
  • Bears: Grizzly and black bears live here. Carry bear spray where you can reach it and know how to use it, hike in groups, make noise on the trail and store all food and scented items as the park directs.
  • Cell service: Coverage is patchy in most parks. Download offline maps and the park’s info before you lose signal.

What to pack

Start with the park service’s ten essentials:

  • Navigation: a paper map or offline map, plus a charged phone and battery pack
  • Sun protection: sunglasses, sunscreen and a hat
  • Layers: a warm layer and a rain shell, even in summer
  • Headlamp or flashlight
  • First aid kit
  • Fire starter (matches or a lighter) for emergencies
  • Repair kit and tools (a small knife, tape)
  • Extra food
  • Extra water and a way to treat it
  • Emergency shelter: a space blanket or tarp

For Glacier also bring:

  • Bear spray in a holster you can reach (buy or rent it near the park; it cannot go in checked or carry-on bags on most flights)
  • A warm hat and gloves: mornings can be freezing even in summer
  • A red light and a blanket for stargazing
  • Binoculars for wildlife watching from a safe distance
  • Camping: tent, sleeping bag rated for night temperatures, camp stove and fuel bought locally

What to leave at home

  • A drone: launching, landing or flying drones is banned in almost every national park site.
  • Firewood from home: it can carry tree-killing pests. Buy it where you burn it, ideally within 10 miles.
  • Pets: of the 2 hikes the park service lists here, 0 allow pets. Where pets are allowed they must be on a leash no longer than 6 feet.
  • Anything you plan to take home from the park: rocks, plants, antlers, artifacts and fossils must stay where you find them.
  • Food that wildlife can reach: store it as the park directs, in your car or a locker, never in a tent in bear country.

Weather

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.

From the National Park Service (public domain).

Sources

Last checked 1 November 2026.

Frequently asked questions

What should I pack for Glacier?
The ten essentials (map, sun protection, layers, light, first aid, fire starter, tools, extra food, extra water and emergency shelter), plus bear spray in a holster you can reach (buy or rent it near the park; it cannot go in checked or carry-on bags on most flights).
Can I fly a drone in Glacier?
No. Launching, landing or operating drones is prohibited in national parks unless the superintendent approves it in writing.