Temperatures as low as -4 degrees can be expected over the coming days, as a cold snap hits the country.
A weather advisory is in place until Sunday night.
Met Eireann says conditions will become increasingly wintry, with a risk of ice and falls of sleet and snow.
Forecaster Matthew Martin says the country in for a chilly few days:
"There could be a little bit of sleet and wet snow in parts of Leinster for a time today."
"For the rest of the week, we're going to see cold nights and some wintry showers during the day, with some sunny spells too."