Much of Ontario will continue to bake in high temperatures Monday and Tuesday as a heat dome lingers over the region.
Environment Canada issued a heat warning for Toronto and much of the Greater Toronto Area (GTA) on Saturday, saying hot and humid conditions will likely continue until Wednesday. Humidex values will linger in the mid-40s, creating dangerously hot conditions.
“The first significant heat event of the season with dangerously hot and humid conditions is expected to continue into the week,” Canada’s weather agency stated.
In Toronto, the agency says the city saw a daytime high of 35 °C on Sunday, with the humidex making it feel like 46. Toronto set a new record for June humidity, with the humidex soaring to 46.3, surpassing the previous all-time high of 45.6 on June 30, 2018.
Nights won’t offer much relief either, as overnight temperatures are forecast to stay in the mid-20s, posing challenges for residents without dependable air conditioning.
Toronto could see its 1st June heat streak in 13 years if temperatures linger
If Toronto Pearson International Airport records three consecutive days at or above 33 °C, it will mark the first such June heat streak in 13 years, dating back to 2012.
People are encouraged to drink plenty of water to stay hydrated and be on alert for early signs of heat exhaustion.
“Take action to protect yourself and others – extreme heat can affect everyone’s health,” Environment Canada said. “Determine if you or others around you are at greater risk of heat illness. Check on older adults, those living alone and other at-risk people in-person or on the phone multiple times a day.”
Wear loose-fitting, light-coloured clothing made of breathable fabrics like cotton, and use a wet cloth or spray bottle to dampen skin and cool down. Stay in the shade or indoors during peak sun (11 a.m. – 4 p.m.), use sunscreen, wear a wide-brimmed hat and sunglasses, limit physical activity, and take frequent breaks in a cool spot.