A major storm is expected to hit this area later this week, potentially bringing rain, freezing rain and a significant amount of snow.
A special weather statement from Environment Canada said it's still uncertain which areas will see freezing rain, and where the heaviest snow will fall. Both will depend on where the low pressure system moves.
The low pressure system is developing over the southern U.S. and will track northeast, reaching southern Ontario on Wednesday.
The special weather statement includes Waterloo Region, Guelph and Wellington County.
Temperatures are expected to hover around freezing, reaching 2 C on Wednesday and zero on Thursday.
In the long-term forecast, snow is expected through to Sunday.
This comes after a record-breaking mild weekend where temperatures hit 10.8 C Saturday afternoon in Waterloo Region.