Most of Ontario started to swelter on Monday as what’s expected to be a prolonged heat wave arrived in the province, with Environment Canada warning that many communities could experience dangerously high temperatures this week.
The weather agency issued heat warnings for large swathes of the province, from southwestern Ontario all the way to the Quebec border, stretching up to Sault Ste. Marie and as far north as Fort Albany. It warned that vulnerable people would be particularly at risk as temperatures soar.
Temperatures in the Greater Toronto Area and Ottawa could feel as hot as 45 C with the humidity this week. Regions further north are also forecast to see humidex values that could feel like the low to mid 40s.