Recent strong pressure gradients and a potent early-September storm system produced a 104 mph gust at the Mount Washington Observatory summit on September 10, 2026—the month’s highest recorded so far and well above typical September daily peaks. This value remains far below the 174 mph September record set in 1979 by remnants of Hurricane David, as measured by the observatory’s heated anemometers designed to withstand rime ice and extreme flows. With September ending and National Weather Service forecasts showing only modest 25–35 mph gusts through the final days, trader sentiment reflects limited remaining potential for higher readings. Continuous summit monitoring by the observatory and official daily summaries will confirm the monthly maximum before resolution.