Met Eireann have issued a Status Yellow snow and ice warning for three counties as a cold snap hits.
The alert is in force for Donegal, Leitrim and Sligo from 10pm on Wednesday until 10am on Thursday.
It reads: "Blustery showers of hail, sleet and snow with icy stretches on untreated surfaces will lead to hazardous driving conditions on Wednesday night and Thursday morning."
Meanwhile it will stay cold on Thursday with some hail and even thunder possible throughout the morning.
A Met Eireann forecaster said: "Wednesday morning there will be sunny spells and scattered showers. A band of rain will move into the northwest later in the morning and will move southeastwards across the country during the afternoon and evening, turning heavy at times. Scattered wintry showers will move into the northwest in the evening. Quite windy with fresh to strong and gusty southwesterly winds. Early afternoon temperatures of 6 to 11 degrees but turning gradually colder from the northwest later.
"It will turn much colder early on Wednesday night as rain clears to the east. Showers will follow behind, falling as sleet and snow in places leading to poor driving conditions. Chance of isolated thunderstorms as well as hail, with lowest temperatures of -2 to +1 degrees allowing for some frost and icy stretches to develop in mostly moderate southwest winds.
"A cold and windy day on Thursday with sunny spells and blustery wintry showers. Snow showers and icy stretches during the morning will lead to tricky driving conditions. Some showers will be heavy with possible hail and thunder, especially in the west and north. Highest temperatures of 3 to 7 degrees, coldest in the north, with an added wind chill factor in strong and gusty westerly winds, with strong gusts at times along western coasts."
And as we head into the weekend there is some better news as we will see outbreaks of sunshine and some warmer temperatures including highs of 10C on Friday.
A forecaster added: "Mostly dry on Friday with good sunny spells in the morning but cloud and some isolated patchy drizzle will spread from the west through the evening. Highs of 7 to 10 degrees in light winds.
"Saturday will be mostly cloudy and breezy with patchy drizzle. Afternoon temperatures of 7 to 10 degrees with fresh to strong and gusty southerly winds. Rain is expected to move into the west on Saturday evening, tracking eastwards across the country on Saturday night and turning heavy at times. The rain is forecast to clear early on Sunday, leaving a mostly dry day with sunny spells, although wintry showers are possible in the northwest. Highest temperatures of 7 to 9 degrees with fresh southwesterly winds easing."