Key Takeaways
- Colder air is settling across southern Ontario, with snow possible later in the week
- Forecasters predict multi-day lake-effect snow in snowbelt regions downwind of Georgian Bay and Lake Huron
- Temperatures will fluctuate throughout the week, with the warmest day being Wednesday and the coldest day being Friday
- Environment Canada has issued no weather advisories for southern Ontario as of yet, but conditions may change later in the week
Introduction to Winter Weather
It looks like the time has come to layer up in warm clothing and get those vehicles winter-ready as colder air settles across southern Ontario, with snow possible later in the week. Cool air is already settling over western Canada, where temperatures are running 10 to 15 degrees below seasonal, according to The Weather Network. This push of cold air is expected to move east toward Ontario in the coming days.
Weekly Weather Forecast
Forecasters say conditions could support multi-day lake-effect snow, particularly in snowbelt regions downwind of Georgian Bay and Lake Huron. The weather for the week of November 22 to November 28 is expected to be quite unpredictable. Sunday will be mainly cloudy with a 40 per cent chance of morning drizzle, shifting to rain later in the day. Brisk winds will make conditions feel cooler, as daytime highs reach 8 C. Cloudy periods are expected to continue overnight with a low near 0 C.
Temperature Fluctuations
Monday will bring a brief return to sunny conditions with temperatures rising to 8 C. Clouds will move in by evening with a 30 per cent chance of showers and a low of 4 C. Periods of rain will develop on Tuesday with a high of 8 C. Rain is likely to continue overnight while temperatures stay at 8 C. Wednesday will be cloudy and windy, with a 60 per cent chance of showers. Temperatures will rise to 11 C, making it the warmest day out of the whole week.
Snow and Flurries
Colder air may move in by evening, bringing a 30 per cent chance of flurries, as temperatures drop to -1 C. Cloudy skies return on Thursday, bringing a 40 per cent chance of flurries. Winds will remain elevated, and the high will reach 1 C. Snowfall remains possible overnight with temperatures falling to –2 C. Another cloudy day is expected on Friday with a 30 per cent chance of snow and a high of 1 C. By evening, temperatures will drop sharply to –8 C.
Weather Advisories
Environment Canada has issued no weather advisories as of yet for southern Ontario, including areas such as Mississauga, Brampton, Halton, Hamilton, and Durham, although that could change if conditions shift later in the week. It is essential to stay updated with the latest weather forecasts to prepare for any potential winter storms.