Air quality warning
A yellow air quality warning is in effect for Chatham-Kent (including Rondeau Park), issued by Environment Canada and the Province of Ontario at 7:53 AM EDT on Sunday, July 19, 2026. Wildfire smoke is causing poor air quality and reduced visibility, with a moderate impact level and high forecast confidence; conditions are expected to improve through the morning but can change quickly from hour to hour and place to place.
Health guidance is to limit time outdoors and consider cutting back or rescheduling outdoor sports and events. Common symptoms include eye, nose, and throat irritation, headaches, or a mild cough, while less common but more serious symptoms include wheezing, chest pain, or a severe cough — anyone having a medical emergency should seek help immediately. People more likely to be affected, such as those 65 and older, pregnant people, infants and young children, people with chronic illness, and outdoor workers, should especially reduce strenuous outdoor activity and seek medical attention if symptoms appear.
Indoors, it’s recommended to keep windows and doors closed, use the best air filter your ventilation system can handle or a certified portable air cleaner, and prioritize staying cool if extreme heat coincides with the poor air quality. If you must go outside, a well-fitted NIOSH-certified N95 or equivalent respirator can reduce exposure, though some risk remains. It’s also worth checking in on anyone nearby who may be more vulnerable to the smoke, and continuing to monitor updates from Environment Canada, airqualityontario.com, or airhealth.ca for current AQHI values.
Today – July 19, 2026
Sunny. Local smoke. High 25. Humidex 28. UV index 8 or very high.
Tonight
Clear. Low 12.
Mon, 20 Jul – Sunny. High 27. Humidex 29. UV index 9 or very high. Night – Cloudy with 40 percent chance of showers. Low 20.
Tue, 21 Jul – Cloudy with 40 percent chance of showers. High 25. Night – Cloudy with 30 percent chance of showers. Low 14.
Wed, 22 Jul – Sunny. High 22. Night – Clear. Low 14.
Thu, 23 Jul – Sunny. High 26. Night – Clear. Low 16.
Fri, 24 Jul – A mix of sun and cloud. High 27. Night – Cloudy periods. Low 17.
Sat, 25 Jul – A mix of sun and cloud. High 28.
