Grab your scarf and your toque — it's going to be freezing in parts of Ontario this weekend. According to The Weather Network, temperatures in northern cities like Timmins and Iroquois Falls will dive to -5 C on Friday night. Editor's Choice: Ottawa's Top Doc Says She Needs A Break After Showing Up At Work With No Pants Thursday and Friday will be quite cold in Timmins at just 3 C throughout the day, followed by 5 C on Saturday. Toronto will get a taste of 3 C weather on Friday night, followed by a high of 11 C on Saturday. A cooldown is expected across the province, but weather experts say that warmer weather will return. "Temperatures will be a few degrees below seasonal for the first several days of October," says TWN meteorologist Dr. Doug Gillham. "However, a milder pattern should return during the second week of October." Areas of southern Ontario are expected to see snow, thunderstorms, and even waterspouts this weekend.