Irish Water says as of this morning some 4,000 homes are without water while 37,000 outside of the Dublin area have restrictions in place.
12,600 homes are on storm-related boil water notices, a further 12,000 people are on a "do not drink" notice in Fethard in Co. Tipperary.
It comes as a status yellow low-temperature warning has been issued for overnight.
It is expected to fall between zero and -4 degrees in parts.