Heat dome brings dangerous temperatures. Here’s how to stay safe – CBC

Solutions to get through an early summer heat wave

Jun 30, 2026

It’s the perfect storm of two national holidays, the biggest sports event in the world and hundreds of millions of people — all during a sweltering heat dome.

A wide swath of North America, including southern Ontario and parts of Quebec, is expected to see temperatures climb into the mid-30s and low 40s as a high-pressure system settles over many cities. Those are far from ideal conditions for a critical World Cup game. Worse, the heat is not expected to ease until the end of the week.

After a heat dome scorched Europe and was suspected to have killed at least 1,000 people within days, health experts warn there are risks here too, despite North America’s much broader access to air conditioning.

Here’s what you need to know about how to stay cool during this heat dome.

Read more: https://www.cbc.ca/news/climate/heat-dome-cooling-methods-fans-wetting-skin-9.7253230