Glacier National Park August Guide: Weather, Crowds
Planning Summary
August offers full summer access, abundant hiking, and warm valley days with cool alpine nights. NPS crowding data labels August as a peak month, and Open-Meteo shows average August highs of 66°F and lows of 47°F. Per NPS.gov, the Going-to-the-Sun Road is usually open and the Logan Pass shuttle and three-hour parking limit are in effect in 2026.
Next steps: reserve campgrounds or shuttle tickets through Recreation.gov, plan hikes around shorter Logan Pass parking windows, and pack midweight layers plus bear spray. Safety reminder: maintain 100 yards from bears and wolves, and 25 yards from other wildlife per NPS.gov. Fee reminder: a 7-day private vehicle pass is $35.00 as of 2026, and non-U.S. residents aged 16+ pay a $100 surcharge unless they buy the $250 Non-Resident Annual Pass. [Check out Counter Assault Bear Spray 8.1oz with Holster](https://yournpguide.com/go/16/) (affiliate link).
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