Temperatures are set to drop to -4 this week in parts of Ireland, according to Met Eireann.
Tuesday night is expected to be the coolest. The forecaster says it'll be a dry and clear night "with a sharp to severe frost".
"Winds will fall light southwesterly or variable and temperatures are expected to reach as low as minus 4 degrees inland", Met Eireann stated.
Monday will be a cold day with a moderate to fresh westerly winds.
Sunshine and showers are both forecast with the showers becoming most frequent in the afternoon.
They could turn more wintry at times with a risk of hail or thunder. Highs of just 5 or 6 degrees in the afternoon.
Ice and frost will slowly clear as temperatures rise to 6 or 7 degrees. Some isolated showers are forecast in the morning, becoming more frequent in the afternoon.
The national forecast for the remainder of the week is available here.