A status yellow wind warning will also be hitting Donegal, as well as other Western counties including Galway, Leitrim, Mayo, Sligo, Clare and Kerry.
Sleet and snow will continue to fall into Saturday night, mainly over northern areas, while it will remain cold across the country. It will remain cold with strong winds and occasional snow showers, especially in the west.
Northwest winds will increase strong and gusty.
There'll be highs of only 5 or 6 Celsius. "A widespread sharp ground frost will form during clear spells with icy patches forming widely".
A Met Eireann forecaster revealed: "Southerly winds of 50 to 65 km/h are expected with gusts of 90 to 110km/h along coastal areas on Wednesday".
The Met Office has issued an amber "be prepared" weather warning for northern Scotland on Thursday.
Up to 3cm of snow over a 24-hour period are possible in parts, weather forecasters have said.
"North and northwest counties will be most at risk, as well as higher ground elsewhere".
The UK Met Office have named it Storm Caroline.