Southern Ontario: Fall Weather Hazards Outlook for Saturday, October 23, 2021

Forecast Discussion

Near-freezing temperatures will once again be found across parts of Central and Eastern Ontario on Saturday morning. This will bring the risk of frost to the area so you should cover up and protect any sensitive plants that you want to save. In addition to the frost risk, we also could see some lake effect precipitation around Georgian Bay and into Northeastern Ontario and with the colder temperatures, it may come down in the form of flurries or wet snow. The confidence is low on this as any precipitation will be very scattered and weak so not anyone will see it and there will be little to no accumulation due to the ground still being relatively warm. Temperatures will rise later in the morning which will melt away any frost and turn any flurries over to rain showers.