London is a city in southwestern Ontario, Canada, along the Quebec City–Windsor Corridor. The city had a population of 422,324 according to the 2021 Canadian census. London is at the confluence of the Thames River and North Thames River, approximately 200 km from both Toronto and Detroit; and about 230 km from Buffalo, New York. The city of London is politically separate from Middlesex County, though it remains the county seat.
AdBetter decisions start with better weather. Stay prepared with The Weather Channel. Live storm radar updates, local weather news, national weather maps. Free.