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. Temperatures will reach a high of 25 degrees C on Wednesday and 24 degrees C on Thursday. 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. This prediction also mirrors the Farmers' Almanac Extended Fall Forecast for 2025, which was released back in July.