A late-season burst of winter weather is set to hit parts of Montana, with the National Weather Service (NWS) warning that up to six inches of wet snow and powerful wind gusts exceeding 60 mph could create hazardous conditions across Glacier National Park and surrounding areas.
The combination of snow, wind and plummeting temperatures is expected to create “hazardous conditions,” especially in the backcountry.
This could make travel difficult, particularly at higher elevations, while also posing a serious hypothermia risk for anyone caught outside, unprepared. Slushy roads, reduced visibility, and falling branches could further disrupt travel and outdoor recreation.
Montana Winter Weather: Who Is Most Affected?
The latest NWS advisories cover Glacier National Park and the East and West Glacier regions, with conditions expected to worsen overnight Wednesday into Thursday afternoon.
The most significant impacts will be felt above 5,000 to 5,500 feet, where a mix of wet, heavy snowfall and strong winds will create dangerous conditions.
Areas highlighted in the advisory include:
- East Glacier Park region, including Kiowa, Marias Pass, Saint Mary, and Logan Pass
- West Glacier region, covering much of Glacier National Park
How Much Snow Is Expected?
The NWS is predicting that snow totals will generally range from two to six inches, with the highest accumulations expected in elevated terrain. Winds could also gust between 50 mph and 60 mph, intensifying the risk of falling branches and sharply reducing visibility.
Although snowfall totals will vary, the NWS has outlined the following expectations:
- Logan Pass and areas above 5,500 feet: Up to six inches of wet snow.
- Higher elevations across Glacier National Park (above 5,000 feet): Around two to five inches.
- Lower elevations: Less accumulation, though slippery, slushy conditions are still possible.
Snow Warnings: What Should Drivers Expect?
Drivers heading through or near Glacier National Park should be prepared for rapidly deteriorating travel conditions, particularly overnight Wednesday and into Thursday afternoon.
Key travel concerns include:
- Slushy, snow-covered roads at higher elevations.
- Reduced visibility due to blowing snow and strong wind gusts.
- Hazardous mountain passes, especially Logan and Marias Passes.
- Potential for downed tree branches, blocking roadways.
While no widespread highway closures have been announced, mountain routes in and around the park are likely to be the most hazardous. Drivers should exercise caution and slow down, allow extra travel time, and carry emergency supplies if they are traveling through elevated terrain.
Local Impacts: Outdoor Safety and Disruptions
Although widespread school closures are unlikely in lower-lying communities, the weather could significantly impact tourism and outdoor recreation in Glacier National Park.
The NWS is emphasizing the risk of hypothermia, particularly for hikers, campers, and anyone caught unprepared in the backcountry. Wet snow combined with gusty winds can quickly strip body heat, even in May.
Even a few inches of snow, when paired with strong winds and cold temperatures, can turn dangerous quickly—especially in mountainous terrain.
Officials are, therefore, recommending that anyone planning to travel or be outside should:
- Dress in warm, waterproof layers.
- Monitor local weather updates for any updates.
- Avoid unnecessary travel, especially through high-elevation routes.
- Be prepared for rapidly changing conditions.
Will The Heavy Snow Continue Into The Weekend?
According to the NWS 7-day forecast, after a stretch of mild, breezy weather on Friday, conditions are expected to turn cooler and more unsettled over the weekend, bringing a mix of rain and a brief chance of winter weather.
Saturday marks the transition, with mostly cloudy skies and a 40 percent chance of rain developing throughout the day. Temperatures will still remain relatively mild, peaking in the mid‑50s, though an isolated thunderstorm cannot be ruled out in the afternoon.
By Saturday night, temperatures will dip toward freezing, settling around 32 degrees, setting the stage for possible wintry conditions into Sunday.
The only window for potential snow comes early Sunday morning, when the NWS says there could be a “slight chance” of a rain‑snow mix before noon. However, this is expected to be brief and limited. Daytime highs will climb to around 50F, well above freezing, which means any flakes that do fall are unlikely to stick or accumulate.
Overall, the outlook does not appear to favor any further heavy snow for Montana. Temperatures are likely to stay too warm during the day, precipitation chances are relatively modest, and any wintry mix is expected to be short-lived and light. The more likely scenario is a damp, cool weekend rather than a disruptive winter weather event.
By Monday, conditions improve again, with sunshine returning and temperatures rebounding into the upper 50s.
