A heat warning remains in effect for the region, with dangerously hot and humid conditions expected to continue through early to mid week.
Environment Canada issued the alert Sunday afternoon, warning of daytime highs ranging from 33 to 36 degrees Celsius and humidex values between 42 and 46. Overnight lows are forecast to remain uncomfortably warm, between 22 and 25 degrees Celsius.
Officials are urging residents to take precautions as the heat poses serious health risks, especially for vulnerable individuals such as older adults, people living alone and those with pre-existing health conditions.
Common signs of heat exhaustion include headache, nausea, dizziness, thirst, dark urine and extreme fatigue. In severe cases, symptoms may progress to heat stroke—a medical emergency that requires immediate attention. Signs of heat stroke include red, hot skin, confusion, loss of consciousness and nausea.
Residents are advised to stay hydrated, schedule outdoor activities during cooler parts of the day, and avoid prolonged exposure to the sun. Lightweight, loose-fitting clothing and wide-brimmed hats are recommended.
Authorities also remind the public never to leave children, pets or anyone unattended in a parked vehicle.
Environment Canada continues to monitor conditions. For updates, visit their website or follow #ONStorm on social media. Severe weather reports can be sent to ONstorm@ec.gc.ca.
