Temperatures set to drop to -4 as cold spell to hit this weekMet Éireann has forecast that temperatures will drop to minus four on Friday night, in what will be a very cold, frosty and icy night.
Sub-zero temperatures, snow and black ice as yellow weather warnings grip IrelandThe forecaster said temperatures will be dropping to -5 degrees, with treacherous travel conditions and the possibility of black ice.
Whole country under weather warning as wintry conditions sweep inTemperatures will be falling to between -2 and -4 degrees in many areas, with "sharp or severe frost and icy stretches".