Boulder Ski Resort Projected Opening Dates

When will ski resorts in Boulder open for the ski season? The 2025/26 Boulder Ski season starts from 2026/10/25. See this list of projected opening dates for Boulder mountains. Important Note: Not all dates listed here are official and final, as resort opening dates are projected and subject to change. Check back for updates on when the lifts are set to start spinning at Boulder, and don't miss opening day at your favorite resort!