A warm and humid day in London is set to start cooling off heading into the overnight as a cold front moves through southern Ontario. Wednesday began with some rainfall, but only a small chance of rain at 30 per cent into the evening. “Still feeling like 32 C in London, but look to the north. So, that’s where the northernly flow is starting to dry things out,” said CTV London Meteorologist Julie Atchison. “The cold front that’s making the move through will be stalling south of the Great Lakes and that could be a bit problematic for our Thursday morning. The reason, we’ll see a little wave of low pressure develop along that front as that wave comes in, it’ll bring the chance for some showers.” Atchison added a chance of light rain will clear out by Thursday afternoon. Here’s a look at the rest of the forecast Wednesday night: Mainly cloudy with a 30 per cent chance of showers. A few showers beginning before morning. Low 16 C. Thursday: A few showers ending in the afternoon, then clearing. High 23 C, humidex 28 C. Friday: Sunny. High 23 C. Saturday: Cloudy with 60 per cent chance of showers. High 17 C. Sunday: Cloudy with a 70 per cent chance of showers. High 20 C.