London-area residents can expect a stretch of cool, unsettled weather this week, with cloudy skies dominating the forecast and periodic chances of showers through midweek. Environment Canada is calling for cloudy conditions Sunday, with a 40 per cent chance of showers in the morning. Northeasterly winds are expected to strengthen to 20 km/h, gusting up to 40 km/h, while temperatures reach a high of 21 C. Skies are forecast to become partly cloudy overnight, with the gusty northeast wind continuing and temperatures dropping to about 10 C. Monday is expected to remain mainly cloudy, with a high of 18 C and northeast winds of 20 km/h, gusting to 40 km/h. Cloudy conditions are expected to persist Monday night, along with a 30 per cent chance of showers and a low of 10 C. The unsettled pattern is forecast to continue Tuesday, with cloudy skies and a 30 per cent chance of showers. Daytime temperatures are expected to reach 18 C before falling to 12 C overnight, when the chance of showers increases to 40 per cent. Wednesday is expected to be similarly cool and cloudy, with a 40 per cent chance of showers and a high of 17 C. Overnight temperatures will dip to around 10 C. The forecast improves slightly Thursday, when a mix of sun and cloud is expected, along with a high of 18 C.