Summer 2024 Weather Predictions Ontario. In terms of precipitation, regions such as atlantic canada, eastern southern ontario, southeast british columbia, the yukon, and the northern northwest territories. If you’re hoping for a lot of pool or beach time, you may be happy about this forecast.

If you’re hoping for a lot of pool or beach time, you may be happy about this forecast. Don’t put away your summer wardrobe just yet—the weather network says most canadians are in for a warm fall.