Heat warning issued for Toronto, surrounding regions as humid conditions linger for 2nd day

A heat warning is in effect for Toronto and surrounding regions ashumid weather blankets the city for a second straight day.

Environment Canada says temperatures are predicted to riseabove 30 Cagain on Sunday, with humidexvalues expected to be in the mid to high 30s.

"The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors," the federal weather agency says.

"Drink plenty of water even before you feel thirsty and stay in a cool place."

Heat warnings are issued when temperatures or humidity are expected to increase the threat ofheat stroke or heat exhaustion, the agency says.

The heat warning is expected toend on Sunday evening with the passage of a cold front.