Met Eireann's snow and ice warning remains in place in Kildare today.
The weather forecasters say it will be generally dry to begin with winter sunshine, but scattered rain and hail showers will start to feed across the country in a northwest direction.
Some showers will be heavy, with a risk of thunder.
The showers are expected to turn increasingly wintry later in the afternoon and evening, with snow accumulations possible. The north and northwest areas will be most at risk, but a slight dusting could occur in other parts, including Kildare.
Maximum temperatures 6 to 9 Celsius early on, but it will turn much colder, with strong and gusty winds up to gale force along northern coasts.
Tonight will be bitterly cold and windy, with clear spells and wintry showers of hail, sleet and snow expected in Ulster, Connacht and in west Munster. Minimum temperatures are expected to be between minus 2 and plus 2 Celsius, with frost and icy stretches.