Residents across Oshawa and southern Durham Region are waking up to a mostly cloudy but dry Monday on June 15, 2026, with no weather alerts in effect. The earlier forecast for heavy rain has not materialized, and Environment Canada confirms that conditions have settled into a quiet pattern just in time for the approach of Father’s Day weekend.
At 2 p.m. this afternoon, the Oshawa Executive Airport weather station reported mostly cloudy skies, a temperature of 17.7C, humidity at 48 per cent, and a west-northwest wind of 24 km/h. Visibility sat at 16 kilometres and no precipitation was recorded. The Environment Canada alert page for Pickering, Oshawa, and southern Durham Region shows no active watches or warnings.
The dry spell is a welcome change after a bout of severe weather swept through the area on June 11. That system brought thunderstorms and squalls with wind gusts up to 35 knots, moving east across Lake Ontario. Since then, the atmosphere has calmed considerably, allowing outdoor plans to get back on track.
Looking ahead to Father’s Day weekend, the forecast remains pleasant and seasonal. Saturday, June 20, is expected to bring a mix of sun and cloud with just a 30 per cent chance of showers and a daytime high of 23C, matching the normal maximum for late June. Overnight, skies will clear to cloudy periods and a low of 12C. Sunday, June 21, looks even brighter with a mix of sun and cloud and another high of 23C. Normals for this time of year are a high of 23C and a low of 12C, so temperatures will be right on track.
June is historically Oshawa’s wettest month, averaging about 92 millimetres of rain. While a few showers cannot be ruled out Saturday, the outlook is far from the heavy rainfall previously suggested. Families planning outdoor barbecues or park gatherings for Father’s Day can expect cooperative weather, especially on Sunday.
