Following a wet and windy weekend, southwestern Ontario is set to enjoy a warm and sunny start to the week, with temperatures expected to rise above seasonal averages. According to Reta Ismail, the region will see highs around 25 C on Monday, thanks to an area of high pressure that is keeping unsettled weather at bay. This high pressure system is linked to a warm front located south of the border, which is blocking moisture from moving north. Tuesday is anticipated to be the warmest day, with a forecast high of 28 C under mostly sunny skies and a light southwest breeze. Rain chances are minimal, with a slight possibility of light showers early Wednesday morning. The weather is expected to remain largely sunny and calm through midweek, with temperatures gradually returning to seasonal levels as the weekend approaches. Looking ahead, Ismail indicates that by early June, the weather pattern is likely to stabilize into a more consistent seasonal rhythm.