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Lorrain, ON

Alerts in Effect

Heat Warning

Issued at 04:43 Sunday 24 September 2017

Hot and humid conditions will continue today and into early this week.

Mostly sunny skies this weekend will allow humidex values to reach into the upper thirties both this afternoon and again on Monday. These unseasonably warm temperatures and high humidex values will persist into early this week.

A cold front is expected to move across Northeastern Ontario Tuesday night into Wednesday bringing cooler temperatures for the remainder of the 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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