Some people saw a light dose of rain and even some scattered thundershowers on Sunday as a warm front pushed into the region.
It's part of the same system that brought deadly tornadoes to the U.S. Midwest over the weekend. The good news is, the impact will be far less severe on this side of the border, but there is still the risk of thunderstorms across much of Ontario and southern Quebec Monday.
"The biggest threat with these storms will be the strong winds," says Gina Ressler, a meteorologist at The Weather Network. "Up to 35 mm of rain is also forecast in the hardest hit areas."
The precipitation further north has been falling as snow, with over 25 cm possible in places like Geraldton and Kapuskasing by the time all is said and done.
In Ottawa and Montreal, temperatures are set to soar into the high 20s, feeling closer to 30 with the humidex.
"Temperatures will drop drastically on Monday night however, as a cold front moves in," says Ressler.
Temperatures across the entire region will drop by about 10 degrees by Tuesday.