A heat event continues.What:Daytime highs of 31 to 33 degrees Celsius.Overnight lows near 21 degrees Celsius.Humidex values between 39 and 43.When:Ending tonight.Additional Information:Although temperatures on Friday and Saturday will climb into the upper twenties to near 30 degrees Celsius, humidity levels are expected to be lower after the passage of a cold front tonight.###For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.htmlPlease continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstormec.gc.ca or post reports on X using #ONStorm.