Toronto is expected to see single-digit temperatures this week

Although the official start of fall is still a few weeks away, Toronto is already bundling up ahead of single-digit temperatures expected this week, although there will luckily still be plenty of warm weather in the mix for a smooth transition out of summer. 

According to Environment and Climate Change Canada's seven-day forecast, Toronto is set to experience single-digit temperatures on Monday and Thursday night this week, with temperatures dropping to 9 degrees C on both days. 

However, don't pack away your shorts just yet — daytime temperatures will remain warm, and sunny conditions will persist until the end of the week. Temperatures will reach a high of 25 degrees C on Wednesday and 24 degrees C on Thursday.

Toronto's weather looks like a mixed bag this week. Photo: Environment and Climate Change Canada.

Nighttime is when we'll really see things cool up, with temperatures teetering between 9 and 13 degrees C at night throughout the week. 

This fluctuating introduction to the fall season was not exactly a surprise. A three-month outlook from the government weather agency, which forecasts the evolution of meteorological trends over one- to three-month periods, predicts above-normal temperatures in Ontario from September to November. 

According to the forecast, most of southern Ontario is forecast to see a 40 per cent chance of above-normal temperatures during this three-month period. 

This prediction also mirrors the Farmers' Almanac Extended Fall Forecast for 2025, which was released back in July. According to the forecast, southern Ontario "will enjoy some of the warmest and most temperate days of the season, especially in early October and mid-November."

However, the long-range forecast also notes that by October, conditions will slowly grow more unsettled, which will set the stage for a stormier and rougher second half of the fall season.