Amherstburg, Ontario, is in the grip of an extreme heat wave this week, with Environment Canada issuing a yellow heat warning for the region as temperatures climb to dangerous levels. The warning covers all of Windsor-Essex and took effect midday Monday, July 13, 2026, with the hottest conditions expected Tuesday when the mercury could reach 37°C and feel like 45 with humidity.
According to Environment Canada, the heat event will last at least through Wednesday or Thursday evening and could be extended. Overnight lows of 20 to 24°C will give residents little relief from the sweltering days. The UV index is forecast to hit very high levels of 9 to 10, raising concerns about sun safety for anyone spending time outdoors.
Dan Metcalfe, emergency management coordinator for the County of Essex, called the stretch of weather unprecedented. “This is kind of unprecedented, a week-long heat wave at this level that’s setting records,” he said. The town of about 23,500 people has a high number of retirement residences, making older adults especially at risk along with infants, young children, and people with health conditions.
Experts remind everyone to take precautions. With UV levels so high, residents should limit sun exposure between 11 a.m. and 3 p.m., wear sunscreen reapplied every two hours, and seek shade or air-conditioned spaces. Symptoms of heat exhaustion include dizziness, headache, and nausea. If someone shows signs of heat stroke like confusion, red/hot skin, or altered consciousness, call for medical help immediately.
Amherstburg’s waterfront along Lake Erie and the Detroit River remains a draw for those looking to cool off. Lake temperatures are typically between 21°C and 27°C this time of year, offering some comfort, but officials urge caution during the peak heat. A 30 percent chance of showers Wednesday may finally break the hot spell, but until then, the town is bracing for potentially record-setting temperatures.
