Skip to main content

By Best National Park Editorial Team · Researched from NPS data & official sources · Methodology

Glacier National Park scenic landscape

Glacier National Park

Montana

9.2/ 10· Editorial score · How we rate

Highlights

Going-to-the-Sun Road
Grinnell Glacier Trail
Lake McDonald
Many Glacier
Hidden Lake Overlook

Best Time to Visit

Summer

Plan your visit during these months for the best weather, wildlife viewing, and trail access. Always check the official NPS page for current conditions before your trip.

Glacier Weather by Month

West Glacier / valley floor (~3,200 ft) · Valleys — Logan Pass (6,646 ft) runs ~20°F colder with deep snow

Our take: Late June through September is the window: Going-to-the-Sun Road open, trails snow-free, shuttles running. July–August bring peak crowds and occasional wildfire smoke; September offers golden larches with thinning crowds.

Approximate 30-year normals (not a forecast). Highs/lows in °F, precipitation in inches.
MonthHighLowPrecipSnowCrowdsRoad & trail access
Jan33°F18°F2.5"25"LowSun Road closed; ski/snowshoe only
Feb37°F20°F1.9"18"LowSun Road closed
Mar45°F25°F1.7"12"LowSun Road closed; plowing begins
Apr55°F31°F1.6"4"LowLower trails melt out
May65°F38°F2.1"—ModerateSun Road partially open; bears emerge
Jun72°F44°F2.6"—HighSun Road fully opens late Jun
Jul80°F49°F1.5"—PeakFull access; entry reservations
Aug79°F48°F1.4"—PeakFull access; smoke possible
Sep68°F41°F1.8"—HighLarches turn; fewer crowds
Oct53°F33°F2.1"3"ModerateSun Road closes mid-Oct
Nov39°F25°F2.6"15"LowSun Road closed
Dec32°F18°F2.7"26"LowWinter quiet; Apgar open

Approximate normals for West Glacier. Logan Pass holds snow into July most years; Going-to-the-Sun Road typically opens late June and closes mid-October. Verify current conditions before traveling: how to read park forecasts · NPS.gov alerts · National Weather Service.

Activities

HikingScenic DrivesWildlife WatchingBoatingPhotography

Visitor Tips

Crowd Level

High

This park is popular. Plan ahead for permits and arrive early to beat the crowds.

Known as the Crown of the Continent, Glacier National Park protects over a million acres of pristine alpine meadows, rugged peaks, and turquoise glacial lakes in Montana's Rocky Mountains. The park's namesake glaciers have been retreating for decades — from 150 in the mid-19th century to roughly 25 active glaciers today — but the landscape they carved remains one of the most stunning in North America. The Going-to-the-Sun Road is one of the most spectacular drives on Earth, traversing 50 miles of mountain passes, while iconic hikes like the Highline Trail and Grinnell Glacier deliver jaw-dropping vistas of waterfalls, wildflowers, and wildlife.

Going-to-the-Sun Road: America's Most Beautiful Drive

The 50-mile Going-to-the-Sun Road crosses Logan Pass at 6,646 feet, offering panoramic views of glacier-carved valleys, alpine meadows, and waterfall cascades. The road typically opens late June to mid-October, and driving it is an essential Glacier experience. Stop at Logan Pass Visitor Center for alpine trails, pull over at the Weeping Wall where waterfalls cascade directly onto the road, and pause at Jackson Glacier Overlook for the park's best glacier viewpoint. Vehicle size restrictions apply — vehicles over 21 feet long, 10 feet high, or 8 feet wide (including mirrors) are prohibited on the most scenic sections. The free park shuttle runs from both west and east sides.

Best Hikes in Glacier

The Highline Trail is Glacier's crown jewel — an 11.6-mile path that contours along the Garden Wall above Logan Pass with vertiginous views and wildflower meadows. The Grinnell Glacier Trail delivers arguably the park's best payoff-to-effort ratio with turquoise lakes, a waterfall, and a close-up view of a real glacier over 10 miles round trip. Hidden Lake Overlook offers a stunning mountain-and-lake panorama for just 2.7 miles round trip from Logan Pass. Avalanche Lake is a moderate 5.9-mile round trip through old-growth forest to a stunning alpine lake backed by waterfalls. For a challenge, take the Dawson-Pitamakan loop (18+ miles) over two passes for truly remote mountain scenery.

Wildlife and Bear Safety

Glacier is prime grizzly and black bear country — one of the best places in the lower 48 to see either species. Many Grinnell Glacier and Highline Trail hikers encounter bears at close range. Carry bear spray on ALL trails and know how to use it. Make noise on trails, hike in groups, and store food properly. Mountain goats and bighorn sheep are commonly spotted at Logan Pass, while elk and moose appear in the valleys. The park is also home to wolves, wolverines, and over 260 species of birds.

Frequently Asked Questions

When does Going-to-the-Sun Road open?

Typically late June to early July, closing by mid-October. Check NPS.gov for current road status — it can vary by several weeks from year to year.

Do I need bear spray in Glacier?

Yes, absolutely. Carry bear spray on every trail and know how to use it. Rent or buy it at park stores or in gateway towns. Bear spray is more effective than firearms in bear encounters.

Can you see glaciers in Glacier National Park?

Yes, about 25 active glaciers remain. Grinnell Glacier, Jackson Glacier (visible from the Sun Road), and Sperry Glacier are the most accessible. Many are retreating rapidly — see them while you can.

How many days should I spend in Glacier?

Two days minimum for Going-to-the-Sun Road and one major hike. Three to five days allows for multiple trailheads, the Many Glacier region, and Two Medicine.

Nearby Parks You Might Like

Yellowstone National Park
Best time: Summer

Yellowstone

Wyoming, Montana, Idaho
9.5High crowds
  • Old Faithful Geyser
  • Grand Prismatic Spring
  • Yellowstone Grand Canyon
Explore Park

Related Guides & Tips