We’re watching a low pressure system pull north into the Great Lakes this weekend. Southerly winds ahead of the low produced extremely warm temperatures that surge across southern parts of Ontario and Quebec. BELIEVE BACK TONIGHT: These great tips can help you adjust to the time change tonight Toronto appears to have recorded its hottest November day on record on Saturday, with a high of 25.1°C surpassing the previous all-time monthly high temperature of 25°C set in 1950 and tied in 1961. St. Catharines reached about 26°C on Saturday afternoon, about a degree off the warmest November temperature ever recorded across Canada. This is an advanced, summer warmth in November. Extremes breed extremes, unfortunately, and the same system that brought the warmth will blast the region with strong winds. A cold front associated with this Great Lakes low will sweep across southern Ontario by Saturday night. Strong winds will mix at the surface along and behind this cold front, leading to a period of potentially damaging wind gusts. Gusts could exceed 80 km/h in places, especially in communities over the rim. However, such strong gusts cannot be ruled out in the Greater Toronto Area. We could see even stronger winds closer to the center of the low, with parts of the Bruce Peninsula potentially in line for gusts of up to 90 km/h. DON’T MISS: It’s not your imagination – here’s why autumn is the foggiest season Watch for downed trees and power lines during periods of high winds. Take some time to secure any loose items outdoors that could blow around in the windy conditions—especially any leftover Halloween decorations that could be caught in the wind like sails. Our cold front will reach eastern Ontario and southern Quebec by Sunday morning. Although the front will be noticeably weaker than it was when it hit southern Ontario on Saturday, we will still see wind across the region to close out the weekend. Temperatures will remain unseasonal through the start of the week, with conditions briefly returning to near-seasonal values on Tuesday and Wednesday. We will see warmer temperatures return to the area by the end of the week ahead of a possible Colorado low heading into the eastern prairies.
