Mount Washington Observatory data shows a peak gust of 103.9 mph recorded on September 10, 2026, establishing a notable high for the month to date amid typical autumn strengthening of winds on the 6,288-foot summit. A nor’easter forecast for September 26–27 is expected to deliver northeast winds with gusts potentially exceeding 60–80 mph at elevation, per National Weather Service model guidance, though exact summit intensities depend on steering patterns, orographic enhancement, and any embedded convection. Historical September maxima at the site have reached 174 mph, yet daily F6 reports through month-end will determine the final 2026 peak; traders monitor these official measurements and short-term forecast updates for shifts near common resolution thresholds.