There will be clear spells tonight (Monday) but scattered showers will continue affecting mostly the west and north with the southeast likely to stay dry, Met Eireann says.
Temperatures will be between 0 and 3 degrees Celsius with a widespread frost and moderate westerly winds, it says. Tuesday will be a cool and blustery day with showers turning heavy or possibly thundery and wintry over higher ground, it says. Temperatures will stay between 7 and 10 degrees in a fresh northwesterly breeze.
On Tuesday night, Met Eireann says the skies will clear and winds will ease allowing a widespread frost to develop with lowest air temperatures zero to -4 degrees with fog patches.
Frost and fog will clear on Wednesday during the morning with fine, sunny conditions countrywide at first, however cloudy weather with outbreaks of rain will move in from the Atlantic into western areas in the late morning, Met Eireann says. These showers will then extend eastwards across the country during the afternoon and evening, it says.
Highest temperatures on Wednesday will reach 10 degrees but it will be a chilly day in a south southeast winds. Rain will turn to sleety snow over the mountains on Wednesday night and will clear eastwards, it says. There will be frost in the east in the evening and at dawn in inland parts of the west and northwest, it says.
Cloud and rain will clear eastwards and there will be good sunny spells on Thursday with isolated showers in parts Met Eireann says. It will be another chilly day with temperatures again reaching 10 degrees and it will be dry and cold on Thursday night with more frost and fog developing, it says.
Currently Met Eireann says Friday and the weekend will be cold and windy with heavy showers.