Heat warning
Heat and humidity expected to continue into the weekend and possibly into early next week.
Daytime maximum temperatures: 30 to 32 degrees Celsius, with humidex values 40 to 42.
Nighttime minimum temperatures: 20 to 22 degrees Celsius.
Hot and humid air can also bring deteriorating air quality and can cause the Air Quality Health Index to approach the high risk category.
Extreme heat affects everyone.
The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.
Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions.
Never leave people or pets inside a parked vehicle.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.
Today – August 26, 2021
A mix of sun and cloud. 30 percent chance of showers early this morning and this afternoon. Risk of a thunderstorm. Fog patches dissipating this morning. High 31. Humidex 41. UV index 8 or very high.
Tonight
Partly cloudy with 30 percent chance of showers early this evening then clear. Risk of a thunderstorm early this evening. Low 20.
Fri, 27 Aug – A mix of sun and cloud. 30 percent chance of showers in the afternoon with risk of a thunderstorm. High 29. Humidex 39. UV index 8 or very high. Night – Cloudy periods with 60 percent chance of showers. Low 23.
Sat, 28 Aug – Cloudy with 40 percent chance of showers. High 31. Night – Cloudy with 40 percent chance of showers. Low 23.
Sun, 29 Aug – A mix of sun and cloud with 40 percent chance of showers. High 31. Night – Cloudy with 40 percent chance of showers. Low 21.
Mon, 30 Aug – A mix of sun and cloud with 40 percent chance of showers. High 30. Night – Cloudy periods. Low 17.
Tue, 31 Aug – A mix of sun and cloud. High 28. Night – Cloudy periods. Low 17.
Wed, 1 Sep – A mix of sun and cloud. High 27.
