2024 Winter Predictions Ontario Ca. The latest winter weather forecast highlights a 60% chance of a weak la niña, expected to bring below. October could very well deliver some winter weather, but we do not expect that cold weather will lock in until later in november or december.

With just four months to go until the official start of winter, ontario may want to enjoy the warm weather while it lasts, ahead of what might be a very unpleasant chilly season. In other words, for southern ontario, we are predicting the western part to be snowier than.