Glacier in October: Crowds, Weather & What to Pack

Best window · VisitWhen score 76/100 · #1 of 12 months

October is one of the best months of the year to visit Glacier National Park: crowds run 18% of the July peak (139,359 average visits), days average 49°F with 10.9 hours of daylight. Computed from NPS and NOAA data.

Partial access: Going-to-the-Sun Road's alpine section typically opens fully late June–early July and closes in mid-October; lower valleys stay accessible year-round. Current NPS conditions →

Crowds in October

Glacier averages 139,359 recreation visits in October — 18% of what July, the peak month, draws. Plan lodging and entries with that in mind — this is genuine quiet-season territory.

Average visits (October)

139,359 (mean 2021–2025, NPS)

Share of the year

4.6% of annual visitation

vs. peak (July)

18%

Weather & daylight

Expect cool days (highs average 49°F), and nights drop below freezing (lows average 32°F). Average precipitation is 2.2″ for the month. Mid-month daylight runs 10.9 hours.

NOAA 1991–2020 monthly normals, station ST. MARY 1 SSW, MT US (17 mi from park coordinates, 4,555 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of October.

What to pack for Glacier in October

Computed from the month's weather normals above — not a generic list.

Insulated jacket, beanie and gloves — nights average 32°F, below freezing
Packable rain jacket — 2.2″ of precipitation is normal this month
Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month
Bear spray — recommended by the park in grizzly country (check current park regulations before you carry)

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Also at their best in October

Other parks whose computed October verdict is a best window — same NPS × NOAA formula:

Badlands in October — 27% of peak crowds, highs 63°F, score 81/100
Isle Royale in October — 2% of peak crowds, highs 51°F, score 81/100
Wind Cave in October — 25% of peak crowds, highs 61°F, score 81/100
Gateway Arch in October — 26% of peak crowds, highs 69°F, score 80/100

Common questions

Is Glacier crowded in October?

No — October is one of the quieter months: 18% of the July peak, averaging 139,359 visits (NPS, 2021–2025).

What is the weather like in Glacier in October?

Average highs of 49°F, lows of 32°F, 2.2″ of precipitation (NOAA 1991–2020 normals, ST. MARY 1 SSW, MT US station).

What should I pack for Glacier in October?

Insulated jacket, beanie and gloves; Packable rain jacket; Sturdy broken-in footwear, navigation and a basic first-aid kit — the full weather-computed list is on this page.

Is everything open at Glacier in October?

Going-to-the-Sun Road's alpine section typically opens fully late June–early July and closes in mid-October; lower valleys stay accessible year-round. Always check the park's live NPS alerts for current conditions.

See also: the best national parks to visit in October · Last verified 2026-09-12