Environment Canada has issued a freezing rain advisory for the Region of Waterloo and the city of Guelph.
The weather office said there is a potential for patchy ice pellets of brief freezing rain on Thursday evening.
Environment Canada said areas in northern Wellington County could see snow mixed with ice pellets, beginning at around 6 p.m.
It should change to freezing rain and then become rain near midnight as the temperature increases, but the exact location and duration of freezing remains uncertain, the agency said.
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Surfaces such as highways, roads, walkways and parking lots may become icy and slippery. Travel may be impacted or become hazardous at times.
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