Heat warning, mix of sun & cloud, high 33, humidex 41, UV index 11 or extreme

Today – July 7, 2020

Sunny this morning and early this afternoon then a mix of sun and cloud with 30 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 33. Humidex 41. UV index 11 or extreme.

Tonight

Partly cloudy. 40 percent chance of showers this evening with risk of a thunderstorm. Low 22.

Heat warning

A prolonged period of hot weather will continue through the rest of this week.

Daytime high temperatures in excess of 31 degrees Celsius, with humidex values in the high thirties to low forties, are expected this week. Overnight lows near or in excess of 21 degrees Celsius are also expected through this period, providing little relief from the heat.

A slightly cooler airmass may move into the area this weekend, however there is considerable uncertainty.

Please refer to your public forecast for further details on expected temperatures.

Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category.

Never leave people or pets inside a parked vehicle.

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.

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.

Wed, 8 Jul – Sunny. High 34. Humidex 40. UV index 10 or very high. Night – Clear. Low 22.

Thu, 9 Jul – Sunny. High 35. Night – Clear. Low 23.

Fri, 10 Jul – Sunny. High 34. Night – Cloudy periods. Low 21.

Sat, 11 Jul – Showers. High 29. Night – Showers. Low 19.

Sun, 12 Jul – Cloudy with 60 percent chance of showers. High 30. Night – Cloudy periods with 60 percent chance of showers. Low 18.

Mon, 13 Jul – Sunny. High 30.

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