Mid-afternoon temperatures in parts of southern Ontario remained slightly below seasonal averages on Monday. However, the weather forecast for the remainder of the week indicates that Toronto will experience above-average temperatures for this time of year. The typical daytime high for mid-September hovers around 21°C, and on Monday, Toronto saw a temperature of 20°C. This reading is considered seasonal, largely due to a northerly wind and a relatively fresh airmass that contributed to the cooler conditions.
Starting Tuesday, temperatures are expected to rise, reaching 2°C to 4°C above the seasonal norm, with the peak occurring mid-week. Wednesday and Thursday are forecasted to hit highs of 25°C, marking a significant increase in warmth. Tuesday will also be characterized by windy conditions, with gusts reaching 40-50 kilometers per hour. The winds will come from the southwest, which will boost the temperature slightly to a high of 24°C. Additionally, there is a possibility of some passing showers, particularly in the early morning hours and again in the afternoon across the Greater Toronto Area (GTA).
CityNews Chief Meteorologist Natasha Ramsahai cautions that "a brief thunderstorm is not out of the question.” The risk of thunderstorms is expected to intensify Tuesday evening, where there may be a slight chance of experiencing brief and heavy downpours. On Wednesday, the weather is likely to remain dry, although Ramsahai suggests that it might be wise to carry an umbrella just in case of unexpected showers. Thursday is anticipated to be cloudy, with additional spotty showers expected in the morning. Fortunately, Friday appears to be dry based on current forecasts.
As for the weekend, conditions seem to trend closer to seasonal or even slightly below seasonal norms. Saturday is expected to be cloudy with a high temperature of approximately 21°C, while Sunday may see a further decrease to about 20°C. Current weather models indicate a likelihood of rain on Sunday, suggesting that it may not be the most suitable day for outdoor activities. While it is still early to specify the exact amount of rainfall, it’s not unreasonable to expect about 10+ mm, likely falling as steadier rain rather than heavy downpours.
In summary, while Monday's temperatures were nearly seasonal, the rest of the week looks to be warmer. Expect windy conditions on Tuesday with potential showers and a slight risk of thunderstorms. The mid-week temperatures will rise significantly, although the weekend may revert to cooler and cloudier conditions with expected rainfall. Weather enthusiasts and outdoor planners should keep these updates in mind when scheduling activities over the coming days.
