Winter Weather Forecast 2024 2024 Calendar. Blazing hot summer temperatures have already begun to wane in ontario, and the inner pessimist in all of us has already started to think about the cold, dreary winter looming just a few months. Plan ahead with our calendars.

Here is everything you need to know about the extended weather forecast, including an important winter weather advisory. The 2025 almanac predicts a winter with a “heart of cold,” forecasting big freezes and heavy snowfall in the central provinces.