Environment Canada has issued a freezing rain warning for Greater Sudbury and the surrounding area, with freezing rain expected to begin tonight.
Conditions should gradually improve overnight, changing to rain or drizzle by Wednesday morning.
Surfaces such as highways, road, walkways and parking lots are likely to become icy and slippery, making travel hazardous at times.
Freezing rain warnings are issued when rainfall in sub-zero temperatures, poses a risk of ice build-up and icy surfaces.