Temperatures dipped well below zero again overnight as an Orange warning for low temperatures and ice remains in place for 15 counties.
The roads will be dangerous for drivers, with the rest of the country under a yellow warning for ice until midday.
The National Emergency Co-ordination Group is focused on getting those still without power or water reconnected as soon as possible.
County Roscommon recorded the coldest overnight temperature with Mount Dillon recording -6.6 degrees celcius.
Meanwhile, Markree in Sligo recorded a low of -5.6 degrees.
