The evening sky above Peterborough’s East City on July 14, 2026 as a result of smoke from forest fires in northwestern Ontario. (Photo: Bruce Head / kawartha NOW) Just three days after warning about air quality issues due to smoke from Quebec forest fires, Environment Canada and the Province of Ontario have now issued another alert for the Kawarthas region. This new warning is effective from Tuesday (July 14) through Thursday, caused by smoke coming from forest fires in northwestern Ontario. The “yellow” air quality alert applies to Peterborough County, Kawartha Lakes, Northumberland County, Haliburton County, and Hastings Highlands. A strong jet stream is moving thick smoke from hundreds of active wildfires in northwestern Ontario into southeastern Ontario. This leads to poor air quality, hazy skies, red sunrises and sunsets, along with possible smoke odors. Hot and humid conditions will make the situation worse. – content continues below As smoke levels rise, health risks can increase. Limit your time spent outdoors. Consider cutting back or postponing outdoor sports and activities. You might experience common symptoms like irritation in your eyes, nose or throat, headaches or a mild cough. More serious but less common symptoms include wheezing, chest pain or severe coughing. If you feel you’re having a medical emergency, get immediate help.
A projected smoke forecast by the end of the day on July 15, 2026. (Map: The Weather Network)
Certain individuals may be more affected by wildfire smoke. This includes those aged 65 and older, pregnant individuals, infants and young children, people with pre-existing illnesses or chronic health conditions, as well as anyone working outdoors. They should reduce strenuous outdoor activities and seek medical help if they notice any symptoms.
If you’re indoors, keep your windows and doors closed as much as you can. During extreme heat events combined with poor air quality conditions, make sure to prioritize staying cool.
You can improve your indoor air quality against wildfire smoke by using high-quality filters compatible with your ventilation system or a certified portable air cleaner that effectively filters out fine particles.
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If you need to be outside for any reason, wearing a well-made mask like an NIOSH-certified N95 respirator can help lessen exposure to fine particles found in the smoke. However; even with this protection there are still health risks involved.
Check in on neighbors or others who might be more susceptible to wildfire smoke effects.
Always follow instructions from local authorities.
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