A prolonged stretch of hot, humid weather is continuing across the region, prompting an ongoing heat warning from Environment Canada.
Daytime highs between 30 and 34 C, with humidex values reaching 38 to 42, are expected through Tuesday — and possibly into Wednesday. Overnight lows of 19 to 23 C are offering little relief from the heat.
The hottest conditions are expected Monday and Tuesday, though forecasters say the duration of the heat event remains uncertain.
Environment Canada is urging residents to take precautions, especially those most at risk, including older adults, young children, and people living alone. Officials advise checking in on vulnerable individuals multiple times a day, in person or by phone.
Early signs of heat-related illness include headache, nausea, dizziness, intense fatigue, thirst, and dark urine. Residents are encouraged to stop activities, move to a cool place, and drink water if symptoms appear.
Heat stroke is a medical emergency. Signs may include red, hot skin, confusion, nausea, and loss of consciousness. If suspected, call 911 immediately and try to cool the person while waiting for help.
To stay safe during extreme heat:
– Drink water regularly, even before feeling thirsty.
– Keep blinds or shades closed and use fans or air conditioning if available.
– Spend time in cool public places such as libraries, community centres, or shaded parks.
– Schedule outdoor activities for the coolest parts of the day.
– Wear light-coloured, loose-fitting clothing and a wide-brimmed hat.
– Never leave people or pets in parked vehicles.
For ongoing updates, visit Environment Canada’s website or follow alerts on social media using #ONStorm.
