Record high temperatures hit Ontario and Quebec for Halloween

Record-high temperatures were recorded in Ontario and Quebec on October 30 and 31, marking an unusually warm end to October. Many communities experienced temperatures typical of summer rather than late fall. Montreal set a new Halloween record with a high of 24.4°C, surpassing the previous record of 21.7°C from 1956. Ottawa also recorded its warmest Halloween at 23.9°C, while Toronto-Pearson tied its record at 22.8°C. The warm weather was caused by a low-pressure system over the northern Great Lakes and high pressure from the southeastern United States. However, more seasonal temperatures are expected to return soon.