Glacier National Park closed the high-altitude section of Going-to-the-Sun Road on Sunday, June 28, due to wet and wintry conditions that park officials said made the route unsafe. The closure extended from Avalanche to the Jackson Glacier Overlook and took effect at 2:00 p.m.
The National Weather Service issued a prolonged rain and runoff warning covering Sunday, June 28 through Monday, June 29, with forecasters warning that temperatures could drop quickly at elevation — the kind of late-June cold snap that catches summer visitors off guard and turns wet roads into icy ones faster than drivers expect. Going-to-the-Sun Road's exposed alpine stretch is particularly vulnerable to rapid weather changes; the road crosses the Continental Divide at Logan Pass, where conditions can deteriorate sharply even in summer.
For Montanans and visitors planning trips to Glacier, the closure is a reminder that the park's signature road operates on nature's schedule, not the calendar's. The summer driving window on the high route is notoriously short, and the park has a standing protocol of closing the alpine section when weather conditions create safety hazards, regardless of the tourist season.
The park had not announced a reopening timeline as of initial reports. Visitors should check the Glacier National Park website or the park's road conditions line before heading to the Logan Pass area, as conditions can change with little advance notice.