A heat warning is in effect for Greater Napanee, Lennox and Addington County, and the majority of southern Ontario, with dangerously high temperatures and humidity expected from Sunday afternoon through Tuesday night.
Daytime highs could reach 31 to 36°C, with humidex values between 40 and 45. Overnight temperatures may stay between 21 and 25°C, offering little relief from the heat.
Environment Canada says the hot weather may stretch into Wednesday, depending on the path of a cold front.
Health officials urge residents to take precautions: drink plenty of water, avoid outdoor activity during peak heat, and check on older adults and those living alone. Watch for signs of heat illness like nausea, dizziness, or dark urine. Heat stroke is a medical emergency. Call 9-1-1 if someone shows serious symptoms.
Stay indoors, use fans or air conditioning, and visit cooling centres if needed. Never leave children or pets in parked cars.
More safety tips are available from the South East Health Unit.
Written by Emily Chatwood
