Most parts will see mild snowfall on Tuesday. Throughout the night and morning we can expect fog and hoarfrost in places. We can expect various sections of road to be entombed in black ice. We will see unpredictable, but generally mild winds. Outside temperatures at night look set to peak at — 5 to 10 degrees Celsius, and dip at — 13 to15 degrees Celsius, with -3 to 8 degrees Celsius expected during the day.The 18th of January sees additional snowfall in places. Temperatures at night will range from -6 to 13 degrees Celsius, to a chilly -12 to 17 degrees Celsius. Temperatures throughout the day are set to hit — 1 to -8 degrees Celsius. Various sections of road will remain slippery.