Alerts for: Waterloo - Wellington


3:20 PM EDT Tuesday 26 September 2017
Heat Warning in effect for:

  • Guelph - Erin - Southern Wellington County
  • Kitchener - Cambridge - Region of Waterloo
  • Mount Forest - Arthur - Northern Wellington County

Hot and humid conditions continuing today, but much cooler air is on the way.

Mostly sunny skies have allowed daytime temperatures to reach the low thirties, with humidex values approaching forty again today.

Although temperatures may start off warm on Wednesday,
a cold front will move across Southern Ontario through the day ushering in considerably cooler air by the end of the day.

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.

Reduce your heat risk. Schedule outdoor activities during the coolest parts of the day.

Seek a cool place such as a tree-shaded area, swimming pool, shower or bath, or air-conditioned spot like a public building.

Never leave people or pets inside a parked vehicle.

Outdoor workers should take regularly scheduled breaks in a cool place.

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.


What we are doing

Date modified: