Active Alerts Froatburn, ON

Heat Warning
Issued at Sat 7:22 PM Jul. 13
Issued by: Environment and Climate Change Canada

A heat event expected to begin on Sunday and may continue into Tuesday.

A hot and humid airmass will reach southern Ontario Sunday. Daytime maximum temperatures are expected to be 29 to 31 degrees celsius with humidex values near 40. There will be little relief at night as minimum temperatures are expected to be near 20 degrees celsius.

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

A cooler airmass is expected to arrive Tuesday night.


Extreme heat can affect everyone’s health.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to or tweet reports using #ONStorm.

Recommended Action

Drink plenty of water regularly, even before you feel thirsty to decrease your risk of dehydration. Thirst is not a good indicator of dehydration.

Limit direct sun exposure. Shade yourself by wearing a wide-brimmed, breathable hat and/or an umbrella.

Never leave people, particularly children, or pets inside a parked vehicle.

Ask a health professional, such as a pharmacist or physician, how medications or health conditions can affect your risk in the heat.