Environment Canada is actively tracking thunderstorm activity over Oshawa this morning as a damp spring weather system moves through the region. While the area is currently experiencing rain and storms, there are no formal weather alerts in effect for Oshawa or the surrounding parts of the Durham Region as of April 15, 2026.
Observations recorded at 5:00 a.m. at the Oshawa Executive Airport showed the temperature at 6.2 C with high humidity and reduced visibility of 4 kilometres. Showers are expected to end later this morning, though residents should keep an eye on the sky as there remains a risk of further thunderstorm activity tonight and into Thursday.
The current weather pattern is part of a trend of unsettled conditions forecasted for the province. The Weather Network had previously predicted a sluggish start to the spring season for Ontario, characterized by colder temperatures and consistent precipitation through April. This follows a winter season where Great Lakes ice coverage reached notable levels in February, which can influence local weather patterns and delay the arrival of typical spring conditions.
Looking ahead, the forecast shows temperatures will remain in flux for the rest of the week. While today may reach a high of 17 C, colder air is expected to move in by the weekend. By Sunday, temperatures are predicted to drop to a high of 7 C, with overnight lows near freezing and the potential for a mix of rain showers or flurries.
