Denver, Colorado – A classic mid-winter pattern is expected to settle across the Rocky Mountains as the New Year approaches, bringing increasing confidence in widespread mountain snow, cold temperatures, and difficult travel conditions from Dec 27 through Jan 9.
Large-scale atmospheric signals favor repeated storm systems moving across the western and central United States during this period. According to the National Weather Service, colder air will be readily available across the Rockies, allowing most systems to produce snow at all elevations, especially across Colorado, Wyoming, Montana, and northern Utah. Mountain zones are expected to see the highest snowfall totals, with several rounds of accumulating snow possible into early January.
Colorado’s Front Range mountains and high passes, including I-70 through the Eisenhower Tunnel and Vail Pass, may experience frequent snow-covered roads and chain restrictions. Wyoming could see significant impacts along I-80 near Elk Mountain and I-25 through central portions of the state, where blowing snow and strong winds are common. Montana’s mountain corridors and Utah’s Wasatch Range are also favored for heavy snowfall during stronger systems.
Lower elevations and valleys may see a mix of snow and cold rain at times, though nighttime periods could allow snow to reach valley floors, especially during colder outbreaks. Gusty winds may accompany some storms, creating areas of reduced visibility and dangerous travel conditions.
State transportation agencies urge travelers to monitor road conditions closely, carry emergency supplies, and avoid unnecessary mountain travel during active storm periods. While brief breaks between systems are expected, the overall setup supports a snowy and impactful start to 2026 across the Rocky Mountain region.
