Met Éireann has issued a yellow weather warning and is forecasting sub-zero temperatures for Monday night, with parts of Ulster and Connacht expected to see the coldest conditions. The counties of Cavan, Donegal and Leitrim could see snow accumulations and experience icy conditions.

Weather expert Alan O'Reilly, who mans the ever-reliable @CarlowWeather account on X, posted: "Rain moving into most areas this morning with a wet day ahead. Temperatures ranging from -1c in North to 12c in South. The rain will the to sleet and snow in parts tonight and tomorrow morning with a cold week before the risk of a stormy weekend."

A snow-ice warning has been issued for four counties tonight as temperatures are set to plummet below freezing this week, Met Éireann has warned.