The Status Yellow snow-ice Warning applies to all of Ireland.
Frosty and snowy showers will give predicted accumulation of 3 cm of snow, with a larger amount of snowfall expected on mountainous areas and on higher ground.
"For a time most of this going through Saturday night into the start of Sunday leaves behind a legacy of icy patches, so you will have to look out for those first thing Sunday".
Meanwhile, a yellow wind warning - which is in place for Munster, Leinster and Galway - comes into effect at 3pm on Saturday, with gusts of up to 110km/hr expected.
The rest of the country hasn't got off the hook as a status yellow rainfall warning has been issued for Saturday for the entire province of Connacht as well as Cavan, Monaghan and Donegal. Between 25 and 35 mm of rain is expected.
Met Éireann Issues Two Weather Warnings Affecting Kildare.
Tomorrow will be a colder and brighter day for many with spells of sunshine.
The rain will clear eastwards early tonight and winds will ease somewhat, however, wintry showers will move in from the west, turning increasingly to snow overnight.
Daytime temperatures only 1 to 4 degrees with a wind chill effect from a gusty west to northwest wind.
The spokesman added: "Scattered wintry showers of hail, sleet and snow will follow behind". Frost and icy patches will develop also.
Monday will continue cold with sunny spells and southerly winds gradually freshening. Towards evening, rain will develop in the west. As the rain clears to the east in the late evening snow will penetrate down to low levels.
SuRie will represent the United Kingdom at Eurovision 2018
The UK Eurovision entry 2018 was confirmed on Wednesday with singer SuRie will be representing us in Portugal in May. Once again, the BBC will use their show format Eurovision: You Decide , being previously used in the past two years.