Today – July 5, 2023
Sunny this morning then a mix of sun and cloud with 30 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. Hazy. High 30. Humidex 38. UV index 10 or very high.
Heat warning
A multi-day heat event continues.
Maximum temperatures:
29 to 32 degrees.
Minimum temperatures:
18 to 21 degrees.
Humidex:
37 to 40.
Timing:
Today through Thursday. Temperatures will be several degrees cooler for Friday.
Discussion:
Areas near the lakes could be slightly cooler than regions further inland.
Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching 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.
Drink plenty of water even before you feel thirsty and stay in a cool place.
Never leave people or pets inside a parked vehicle.
Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.
Tonight
Partly cloudy. 30 percent chance of showers early this evening with risk of a thunderstorm. Hazy. Low 21.
Thu, 6 Jul – Mainly cloudy with 60 percent chance of showers in the morning. Showers beginning near noon. Risk of a thunderstorm in the morning and afternoon. High 29. Humidex 36. UV index 5 or moderate. Night – Cloudy periods with 60 percent chance of showers. Low 15.
Fri, 7 Jul – Sunny. High 26. Night – Clear. Low 12.
Sat, 8 Jul – A mix of sun and cloud. High 27. Night – Cloudy periods. Low 17.
Sun, 9 Jul – A mix of sun and cloud. High 28. Night – Cloudy periods with 30 percent chance of showers. Low 18.
Mon, 10 Jul – A mix of sun and cloud. High 29. Night – Cloudy periods. Low 18.
Tue, 11 Jul – A mix of sun and cloud. High 29.
