The heat is on

A warm front is in the process of lifting north of the Kemptville area this morning. Overnight showers and thunderstorms dumped between 7-12mm of rainfall. We cannot rule out more thunderstorms at any point this weekend in the very sultry air. Buffalo, NY this morning is already approaching 25C, so it tells you how warm it is south of the front. We are expecting highs near 30C all weekend, and into the 30's over southwest Ontario. Humidex Advisories remain in place for the southwest. Air quality, like in the photo above of Toronto, will be poor all weekend. Beyond the weekend we will see a break in the heat early in the week before it returns towards the middle of next week.