Met Éireann has issued a low temperature status yellow warning for Louth, with temps expected to plummet to between -2 and -4 degrees celsius tonight.
Met Éireann said: "Very cold tonight. Minimum air temperatures will range -2 to -4 degrees Celsius. Widespread severe frost with the risk of icy patches."
The warning is valid from Sunday 17 November at 8pm to Monday 18 November at 9am.