A rain and snow warning has been issued for eight counties as temperatures plummeted across Ireland overnight.
A Status Yellow rain/snow warning will come into place for Cavan, Donegal, Longford and all five counties in Connacht at 12pm and last until 12am.
Met Éireann warned that showers could turn to sleet or snow and create difficulties when travelling as well as poor visibility.
A nationwide low-temperature warning expired at 10am.
Water levels in rivers and canals are being monitored in Dublin after weeks of heavy rain led to flooding in homes and roads in parts of the capital.
Dublin City Council said last night that it was actively monitoring elevated surface water levels across the city, particularly in the River Liffey around the Chapelizod area.
The council also said it was working closely with Waterways Ireland in relation to the Grand Canal, which has heightened water levels.
The council also said priority routes would be gritted, but warned the public that hazardous driving conditions and travel disruption may occur.
Yesterday, several areas of north Dublin experienced significant levels of flooding after heavy rain.