Environment Canada has removed a cold weather warning for Ajax, Ontario, as of the morning of March 3, 2026. The cancellation means the immediate health risks from extreme wind chill have eased for the Pickering-Oshawa-Southern Durham region. Residents are no longer under an official alert, though officials still recommend staying aware of changing conditions.
According to Environment Canada, the area was previously under a yellow alert, which marks hazardous weather that can cause moderate health issues or local disruptions. On the morning of March 3, 2026, the Oshawa Executive Airport recorded a temperature of -2.9°C with a wind chill of -7.
While the weather is currently milder, the Durham Region Health Department typically issues local alerts when temperatures reach -15°C or wind chills drop to -20. Local health officials advise outdoor workers and vulnerable people to continue monitoring the forecast, as late-winter weather in the region can be unpredictable.
A significant warming trend is expected to move into the community over the next several days. Daytime highs are forecast to reach 10°C on Saturday, March 7, 2026, and could climb as high as 11°C by Monday, March 9, 2026.
