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Churchill Heights, ON

Alerts in Effect

Heat Warning

Issued at 15:13 Saturday 23 September 2017

Hot and humid conditions this weekend and into early next week.

Mostly sunny skies this weekend will allow daytime temperatures to reach the low thirties, with humidex values approaching forty. These unseasonably warm temperatures and high humidex values will likely persist into early next week.


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.

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 or tweet reports using #ONStorm.

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