Southern Ontario is enjoying temperatures well above seasonal norms this week, with sunshine and mild conditions expected to continue through Remembrance Day, according to CTV News London meteorologist Julie Atchison. “It’s nice and mild out there in London,” Atchison said, noting temperatures had reached 14 C in London by Tuesday afternoon, while Sarnia and Windsor were already reporting 17 C. The sunny weather is expected to continue through Tuesday before skies become partly cloudy overnight. Residents can expect a mix of sun and cloud Wednesday morning, with increasing cloud cover developing through the afternoon. Atchison said moisture moving out of the American Midwest will bring mainly cloudy skies for Remembrance Day ceremonies on Wednesday, but conditions should remain pleasant. “There is a slight chance for some showers towards Grey and Bruce County,” she said. “However, I am expecting the majority of the rainfall to hold off until later in the day.” Steadier rain is expected to develop north of London, including parts of Huron and Perth counties, by late afternoon, with Grey and Bruce counties also expected to see rainfall. London faces only a 40 per cent chance of showers, Atchison said. Temperatures are expected to reach about 9 C by late Wednesday morning, with light and variable winds, generally from the south. A significant cool-down is forecast to arrive later in the week. Thursday’s high is expected to reach just 7 C, followed by 4 C on Friday under a mix of sun and cloud. Overnight temperatures are forecast to fall between -2 C and 1 C, creating the potential for lake-effect precipitation, particularly in areas north of London. “Any time you get that cold flow coming off Lake Huron, we could get into some mixing,” Atchison said. While a slight chance of lake-effect rain or snow will remain in the forecast through the weekend, Atchison said residents planning outdoor activities should still be able to enjoy some sunshine.
