Ontario Can Expect Little Relief From Heat and Humidity This Summer, Experts Say

Published on June 18, 2024

The days-long heatwave hitting much of Ontario this week is the beginning of a very hot and humid summer, weather experts say. Environment Canada and the Weather Network are predicting warmer than normal temperatures this summer for the entire province as well as for the central Prairies, Quebec, and Atlantic Canada. While June will be a mixture of cool weather interspersed with above-normal temperatures, there will be little relief for the rest of the summer, says Weather Network senior meteorologist Doug Gillham. In Ontario, the heat is “expected to build through July and August and linger into September,” Mr. Gillham said in a blog post, adding that the Greater Toronto area, the Ottawa region, and southwestern Ontario can expect high heat and humidity throughout the summer months....