Overview

• Daytime highs are reaching the high 20s across Toronto and southern Ontario, with about 27 C expected to hold through Monday.
• The warmth is running roughly 10–11 C above the early-October norm of 15–17 C, according to Environment and Climate Change Canada.
• Meteorologist Rob Kuhn says some areas could hit 30 C and Toronto may approach or break daily temperature records this weekend.
• A shift to cooler weather is forecast to begin Tuesday with showers, followed by daytime highs returning to the mid-teens by midweek.
• Forecasters expect a below-seasonal 14 C on Thursday and say frost advisories are possible later in the week.