Heat warning, mix of sun & cloud, high 30°C, humidex 38°C

Today – July 10, 2020

Sunny this morning and early this afternoon then a mix of sun and cloud with 40 percent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 30. Humidex 38. UV index 10 or very high.

Tonight

Showers with risk of a thunderstorm. Local amount 15 to 25 mm. Low 21.

Heat warning

A prolonged period of hot weather continues.

Daytime high temperatures in excess of 31 degrees Celsius, with humidex values near forty, are expected. 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 with showers may move into the area late Friday or early Saturday, 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.

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.

Check on older family, friends and neighbours. Make sure they are cool and drinking water

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.

Sat, 11 Jul – Mainly cloudy with 60 percent chance of showers and risk of a thunderstorm. High 26. Humidex 34. UV index 7 or high. Night – Cloudy periods with 30 percent chance of showers. Low 21.

Sun, 12 Jul – Cloudy with 60 percent chance of showers. High 29. Night – Periods of rain. Low 18.

Mon, 13 Jul – Periods of rain. High 29. Night – Cloudy periods with 70 percent chance of showers. Low 19.

Tue, 14 Jul – Sunny. High 31. Night – Clear. Low 21.

Wed, 15 Jul – A mix of sun and cloud with 60 percent chance of showers. High 33. Night – Cloudy with 60 percent chance of showers. Low 22.

Thu, 16 Jul – A mix of sun and cloud with 60 percent chance of showers. High 31.

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