Spring has taken a cold detour in Southern Ontario as a late-season system brings gusts up to 60 km/h and localized snow to the Greater Toronto Area. According to Environment Canada, Tuesday, April 7, 2026, will feel more like mid-winter than early spring. Residents across the Durham Region are being warned of rapidly changing conditions, with a mix of heavy flurries and biting wind chills dominating the morning commute and afternoon hours.
Snow Accumulation and Visibility Concerns
While many parts of the GTA will see a 40 to 70 per cent chance of flurries, the Durham area is expected to bear a heavier load. Forecasters predict that between 2 cm to 4 cm of snow could accumulate by the afternoon in cities like Oshawa and Whitby. In some localized areas covered by a special weather statement, totals could reach as high as 10 cm if persistent snow squalls develop off the lake.
The primary danger today is not just the accumulation but the “flash” nature of the snowfall. When combined with gusts up to 60 km/h, visibility can drop significantly in a matter of seconds, creating whiteout-like conditions on major routes such as Highway 401 and Highway 407. Drivers in Pickering and Ajax are urged to leave extra following distance and prepare for slippery patches on untreated side roads.
The Wind Chill Factor
The temperature story is equally dramatic. While the mercury in Mississauga and the surrounding GTA might reach a high of 2°C, the raw northwest winds will make it feel significantly colder. During the peak of the morning, the wind chill could make temperatures feel like a frigid -12°C. This intense cold snap is a sharp contrast to the typical April mildness Durham residents expect this time of year.
As the day progresses, the northwest gusts up to 60 km/h are expected to taper off to a more manageable 20 km/h by the late afternoon. However, the cold will linger. Tuesday night is forecast to be clear but chilly, with a low of -5°C and an overnight wind chill of -7°C across Clarington and the northern townships of Uxbridge and Scugog.
Sunny Skies on the Horizon
The good news for those tired of the winter encore is that a recovery is imminent. Looking ahead to Wednesday, April 8, the system is expected to clear out entirely. Durham residents can look forward to a sunny day with a high of approximately 5°C. The evening will remain clear, with a low of around 4°C, marking a much more seasonally appropriate end to the week.
Until then, property owners should secure loose outdoor items that could be caught by the gusts up to 60 km/h and ensure that pets are not left outdoors for extended periods during the morning’s peak wind chill.
