Beautiful, sunny conditions across midwestern Ontario this morning, with the high reaching a comfortable 17 degrees. “Sunshine holds into Wednesday,” explained CTV London Meteorologist Julie Atchison, adding temperatures are on the rise. “We pick up a southerly flow today and that will push temperatures above 20 degrees as we hit Wednesday.” Atchison says sunshine remains for your Thursday as well, with a high of 19 degrees. We will see a mix of cloud move in for the holiday weekend, but the probability for rain is on the lower end. Here’s a look at the rest of the forecast Tuesday: Mainly sunny. Wind becoming southwest 20 km/h late in the morning. High 17. UV index 4 or moderate. Tuesday night: A few clouds. Wind southwest 20 km/h becoming light in the evening. Low 11. Wednesday: A mix of sun and cloud with 30 per cent chance of showers. High 23. Thursday: Sunny. High 19. Friday: A mix of sun and cloud with 30 per cent chance of showers. High 18. Saturday: A mix of sun and cloud. High 17.