A freezing rain warning is in effect for the regions southwest of the Island of Montreal and into eastern Ontario. Environment Canada issued the warning for the Salaberry-de-Valleyfield, Vaudreuil-Dorion and the region stretching to Gatineau and Perth, Ontario. The freezing rain is expected overnight from Monday to Tuesday morning. “Freezing rain may be mixed with light snow at times,” the warning reads. “Roads and walkways will likely become icy and slippery. There may be a significant impact on rush hour traffic.” On Tuesday, temperatures are expected to rise as high as six degrees end the freezing rain will melt. In Montreal, there is a risk of freezing rain with temperatures dropping to zero overnight, but no warning has been issued for the island.