Orangeville, Ontario is in for a muggy, unsettled week with showers and possible thunderstorms before conditions improve by the weekend, according to Environment Canada.
As of 5:00 PM on Monday, August 31, 2026, the temperature at the nearby Elora observation station was 23.1°C with 86% humidity, producing a humidex of 31. Environment Canada’s forecast calls for a risk of thunderstorms Monday evening and overnight, with continued chances of showers through mid-week.
Tuesday will see a high of 27°C with a humidex of 35, and there is a risk of a thunderstorm in the afternoon and again overnight. Wednesday is expected to reach 28°C, continuing the warm and humid pattern. These values are above the average September high of 22°C for Orangeville.
On the humidex scale, readings between 30 and 39 indicate “some discomfort,” and Environment Canada advises that people should limit or modify outdoor exercise based on age, physical condition, clothing, and other weather factors.
No weather alerts are currently in effect for Orangeville. By Friday, temperatures are expected to moderate to a high of 24°C, and Saturday should bring a mix of sun and cloud with a high of 24°C, offering a nicer end to the week.
