Tuesday brings a full day of sunshine, with temperatures warming up in to 13 in the afternoon. For those heading out early in the morning, dress warm as “the temperatures are hovering near the freezing mark,” said CTV London’s meteorologist Julie Atchison. The sunshine disappears heading into Wednesday, with rainfall expected. Atchison says periods of rain will develop in Grey and Bruce County, and the chance of showers will develop across the rest of Southern Ontario. Mild temperatures will drop down to nine on Thursday, and Friday brings a cooler air mass for the weekend. In fact, the cool temperatures may bring a chance of snow heading into next week. “Enjoy the sunshine today,” said Atchison, as showers and colder temperatures loom ahead. Here’s a look at the rest of the forecast Tuesday: Sunny. Increasing cloudiness in the afternoon. Wind becoming west 20 km/h in the morning. High 13. UV index 3 or moderate. Tuesday night: Mainly cloudy. Low 6. Wednesday: Periods of rain. High 12. Thursday: Sunny. High 9. Friday: Cloudy with 40 per cent chance of showers. High 11. Saturday: Cloudy. High 7.