Temperatures are set to fall lower than they have been in recent days -- though Ireland won't experience anything like the snow of 2010.
Meteorologist Joanna Donnelly said that anyone who is out and about tomorrow should prepare for wet weather.
"It is not going to be picture postcard weather but it will certainly be seasonal," she said.
"There will be a touch of frost, but nothing to make the ground white really."
There will be heavy showers throughout the day but by early afternoon, Met Eireann is expecting drier weather with moderate southerly breezes.
However, heavy showers will develop in the west early tonight and spread to all areas by Christmas Day. "There is sunshine and showers and some could be heavy in the early hours," Ms Donnelly said.
St Stephen's Day weather looks like being better..
"I was just on to Leopardstown Race Course and told them that apart from some showers tonight, there is not an awful lot of rainfall expected," she said.