Hot and humid conditions expected today and Wednesday. What:Daytime highs of 28 to 31 degrees Celsius and a humidex of 33 to 38.Overnight lows of 19 to 23 degrees Celsius, providing little relief from the heat.When:Today through Wednesday.Additional information:Hot and humid conditions are expected. A slightly cooler airmass is expected to arrive on Thursday bringing an end to this heat event.###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 ONstorm@ec.gc.ca or post reports on X using #ONStorm.

Smoke is causing or expected to cause poor air quality and reduced visibility.Smoke from forest fires over northern Ontario is causing poor air quality and reduced visibilities. The poor air quality may persist into Tuesday for some areas.###As smoke levels increase, health risks increase. Limit time outdoors. Consider reducing or rescheduling outdoor sports, activities and events.You may experience mild and common symptoms such as eye, nose and throat irritation, headaches or a mild cough. More serious but less common symptoms include wheezing, chest pains or severe cough. If you think you are having a medical emergency, seek immediate medical assistance.People more likely to be impacted by outdoor air pollution, including people aged 65 and older, pregnant people, infants and young children, people with an existing illness or chronic health condition, and people who work outdoors, should reduce or reschedule strenuous activities outdoors and seek medical attention if experiencing symptoms.Visit http://www.airhealth.ca for information on how to reduce your health risk and your personal contribution to pollution levels, as well as for current and forecast AQHI values.Please continue to monitor alerts and forecasts issued by Environment Canada.