On Friday night, temperatures could drop as low as -3C, resulting in a sprinkling of frost and some icy patches.
Wednesday and Thursday are expected to be mostly dry, with some drizzle on the way on Friday morning, Met Éireann has forecast.
On Friday night, temperatures will vary between -3°C and 2°C and people will wake up to frost and ice in some parts of the country.
Fog and mist will also develop in some parts of the country.
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On Saturday during the day, the weather will be cold but bright with the temperature ranging from 5°C to 8°C.
Overnight, the temperature will drop to between -3°C and 3°C with more frost expected, although some parts of the country will experience rain moving in from the west.
On Sunday, it is expected there will be cloudy skies and rain spreading eastwards across the country, with the temperature ranging from 6°C to 10°C.
Next week is expected to be cold but mainly dry with the occasional patch of rain or drizzle.
Main image: An old oak tree covered in frost on a cold winter's day.