IQAir<\/a>, which tracks global air quality data. <\/p>\n\u201cWe have a very smoky start to the day. I know it may look like fog but we are contending with wildfire smoke,\u201d CP24 Weather Specialist Jess Smith said on Wednesday morning. <\/p>\n
\u201cIt doesn\u2019t get better throughout the day today, unfortunately.\u201d <\/p>\n
Environment Canada said smoke may cause mild symptoms, such as eye, nose, and throat irritation, headaches or a mild cough.<\/p>\n
\u201cMore 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,\u201d Environment Canada said in its advisory. <\/p>\n
Those at greater risk of health issues related to poor air quality include people over the age of 65, pregnant people, infants and young children, and people with existing illness or chronic health conditions. <\/p>\n
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Toronto wildfire Heavy wildfire smoke hangs over the Toronto skyline, Wednesday, July 15, 2026. <\/p>\n
\u201cWhen indoors, keep windows and doors closed as much as possible,\u201d the advisory read.<\/p>\n
\u201cWhen there is an extreme heat event occurring with poor air quality, prioritize keeping cool.\u201d <\/p>\n
Heat warning still in effect<\/p>\n
A heat alert remains in effect for Toronto today with the mercury rising to 33 C today, feeling closer to 36 with humidity. <\/p>\n
\u201cWe are still under that heat dome that stretches from southern portions of Saskatchewan through Manitoba, almost the entire province of Ontario, and into Quebec as well,\u201d Smith said. <\/p>\n
Environment Canada notes that the heat and humidity are exacerbating issues with air quality. <\/p>\n
\u201cHot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category,\u201d the national weather agency said. <\/p>\n
\u201cWatch for the early signs of heat exhaustion in yourself and others. Signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Stop your activity and drink water.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"Environment Canada is warning of poor air quality and reduced visibility in Toronto today due to wildfire smoke…\n","protected":false},"author":2,"featured_media":803514,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[712,49,48,44],"class_list":["post-803513","post","type-post","status-publish","format-standard","has-post-thumbnail","category-canada","tag-apple-news","tag-ca","tag-canada","tag-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/803513","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/comments?post=803513"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/posts\/803513\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media\/803514"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/media?parent=803513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/categories?post=803513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ca\/wp-json\/wp\/v2\/tags?post=803513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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Ontario weather alerts smog wildfire Environment Canada alerts across Ontario, as of 9 a.m. ET Wednesday morning, July 15, 2026. Environment and Climate Change Canada has introduced a new colour-coded, tiered weather alert system: Yellow: Hazardous weather may cause damage, disruption or health impacts. Orange: Severe weather is likely to cause significant damage, disruption or health impacts. <\/p>\n