A snow and ice warning has been issued for Donegal, Leitrim, Mayo and Sligo today.
According to Met Eireann, heavy thundery showers will turn wintry, especially over higher ground, with some inches of snow to fall over hills.
Drivers are being urged to take extra care on the roads.
“Today will be cold and very windy,” a Met Eireann spokesperson said today. “There will be good sunny spells with scattered showers, however in the north and northwest, the showers will be more frequent and heavy with the risk of thundery downpours, so we are urging all motorists to take care on the roads.”
“On higher ground the showers could turn wintry. There will be top temperatures of four to seven degrees and very strong and gusty westerly winds.”
ESB has already reported lightnight-related damage in Sligo.
The showers are set to continue into the evening and tonight, and temperatures are also set to drop.
“Tonight the showers will continue with the ongoing risk of thunder in the west and north as well as the showers turning wintry on higher ground,” the forecaster continued.
"It will be a cold and windy night with lowest temperatures of -1 to +2 degrees. There will be some frost, but this will be confined to sheltered places.
Tomorrow morning will start as cold and windy, however, a few sunny spells will develop later.
“There will be good sunny spells and it will become mostly dry in the afternoon, however, it will remain cold with top temperatures reaching 5 to 7 degrees,” the Met Eireann spokesperson concluded.